Author: Ameeba

Overview

CVE-2025-6334 is a critical vulnerability discovered in the D-Link DIR-867 1.0 router. This flaw has the potential to compromise systems, leading to possible data leakage. The vulnerability lies in the strncpy function of the Query String Handler component of the D-Link DIR-867 1.0 router. The exploit has been disclosed publicly and is of a critical nature, due to the potential for remote execution. This vulnerability only affects this specific product, which is no longer supported by the vendor, increasing the level of risk involved.

Vulnerability Summary

CVE ID: CVE-2025-6334
Severity: Critical (8.8 CVSS Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage.

Affected Products

Product | Affected Versions

D-Link DIR-867 | 1.0

How the Exploit Works

The vulnerability comes into play in the strncpy function of the Query String Handler component of the D-Link DIR-867 1.0 router. The manipulation of this function leads to a stack-based buffer overflow. An attacker can remotely exploit this vulnerability to run arbitrary code on the compromised system, leading to a complete system compromise or potential data leakage.

Conceptual Example Code

The following conceptual code represents how the vulnerability might be exploited. This is a malicious payload sent via an HTTP POST request to the vulnerable endpoint on the router:

POST /vulnerable/endpoint HTTP/1.1
Host: target.router.com
Content-Type: application/json
{
"malicious_payload": "strncpy(buffer, overly_long_string, size_of_buffer);"
}

In this payload, the “overly_long_string” would be replaced with an actual string that is longer than the “size_of_buffer”. This would trigger the buffer overflow, potentially leading to arbitrary code execution.
Please note that this is a conceptual representation and the actual exploit may vary based on the specific conditions of the target network, the configuration of the affected device, and the intent of the attacker.

Mitigation

Given that the product is no longer supported by the vendor, applying a vendor patch is not possible. As a temporary mitigation, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS). These systems can help detect and possibly prevent the exploitation of this vulnerability. It is, however, recommended to replace the unsupported device with a supported one as soon as possible for a more permanent solution.

Overview

In the ever-evolving landscape of cybersecurity, a critical vulnerability, CVE-2025-6328, has been discovered in the D-Link DIR-815 router version 1.01. This vulnerability has been identified as a stack-based buffer overflow, which can be exploited remotely, potentially leading to a system compromise or data leakage. Being a widely used router, this vulnerability poses a significant threat to many users and organizations that rely on the D-Link DIR-815 for their network connectivity.

Vulnerability Summary

CVE ID: CVE-2025-6328
Severity: Critical; CVSS Score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

D-Link DIR-815 | 1.01

How the Exploit Works

This vulnerability stems from a flaw within the sub_403794 function of the hedwig.cgi file in D-Link DIR-815 version 1.01. By manipulating this function, an attacker can cause a stack-based buffer overflow, which is a more dangerous class of buffer overflow attacks that can overwrite the control data of a function. This could lead to the execution of arbitrary code, potentially allowing an attacker to gain control over the system. A successful exploit would be initiated remotely, requiring no user interaction or elevated privileges.

Conceptual Example Code

While an exact exploitation method has not been disclosed, a conceptual example of exploitation might involve sending a specially crafted HTTP request to the vulnerable router. This could look something like:

POST /hedwig.cgi HTTP/1.1
Host: <target router IP>
Content-Type: application/x-www-form-urlencoded
data=<overly long string causing stack overflow>

In this hypothetical exploit, an attacker would send an overly long string as the ‘data’ parameter to the hedwig.cgi file. This could cause the buffer to overflow, potentially allowing the attacker to execute arbitrary code or initiate other malicious activities.

Mitigation Guidance

Users are strongly advised to apply the patch released by D-Link as soon as possible. In the meantime, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation method for this vulnerability. These systems can provide some degree of protection by detecting and blocking suspicious activities and traffic patterns. However, they are not foolproof and cannot completely eliminate the risk posed by this vulnerability. Therefore, the application of the vendor patch should be prioritized to ensure maximum security.

Overview

An alarming cybersecurity vulnerability, identified as CVE-2024-53298, has been detected in Dell’s PowerScale OneFS versions 9.5.0.0 through 9.10.0.1. This vulnerability involves missing authorization in the NFS export, which is a critical component of a system’s file sharing capabilities. By exploiting this vulnerability, an unauthenticated attacker with remote access could gain unauthorized access to the filesystem. The potential consequences of such unauthorized access are severe, including reading, modifying, and deleting arbitrary files. This issue is considered critical as it can lead to full system compromise and data leakage.

Vulnerability Summary

CVE ID: CVE-2024-53298
Severity: Critical (CVSS Score: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthorized filesystem access, potential system compromise or data leakage

Affected Products

Product | Affected Versions

Dell PowerScale OneFS | 9.5.0.0 – 9.10.0.1

How the Exploit Works

This critical vulnerability stems from missing authorization checks in the Network File System (NFS) export of the affected versions of Dell PowerScale OneFS. An attacker can exploit this vulnerability by sending specially crafted requests to the NFS export. Since the system does not properly validate these requests, an attacker can gain unauthorized access to the filesystem. This could potentially allow the attacker to read, modify, or delete arbitrary files, leading to data leakage or system compromise.

Conceptual Example Code

Below is a conceptual example of how an attacker might exploit this vulnerability:

# Attacker mounts the NFS export on their system
mount -t nfs target.example.com:/path/to/vulnerable/export /mnt/target
# Attacker now has unauthorized access to the filesystem and can read, modify, or delete files
cat /mnt/target/sensitive_file.txt
echo "malicious_content" > /mnt/target/sensitive_file.txt
rm /mnt/target/important_file.txt

This conceptual example is meant to illustrate the potential severity of the vulnerability and does not represent an actual exploit.

Mitigation Guidance

Dell recommends customers to upgrade their PowerScale OneFS to a version that addresses this vulnerability at the earliest opportunity. As a temporary mitigation, users can also employ Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) to monitor and block potential exploit attempts. However, these are only temporary solutions and may not fully prevent exploitation. It is therefore crucial to apply the vendor patch as soon as it is available.

Overview

A critical vulnerability has been discovered in TOTOLINK EX1200T 4.1.2cu.5232_B20210713, one of the widely used network devices. This vulnerability, classified as CVE-2025-6302, poses a significant threat as it directly affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi, leading to a stack-based buffer overflow. This flaw is especially concerning, given that it can be exploited remotely, making the potential attack surface quite large. The severity of this vulnerability and its potential to cause system compromise or data leakage necessitates immediate attention and action.

Vulnerability Summary

CVE ID: CVE-2025-6302
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Remote code execution leading to potential system compromise or data leakage

Affected Products

Product | Affected Versions

TOTOLINK EX1200T | 4.1.2cu.5232_B20210713

How the Exploit Works

The vulnerability exists due to insufficient input validation of the ‘Comment’ argument in the setStaticDhcpConfig function in the /cgi-bin/cstecgi.cgi file. An attacker can exploit this flaw by sending a specially crafted request containing an overly long ‘Comment’ value. This can lead to a buffer overflow condition where arbitrary code can be executed in the context of the application, leading to system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited using a HTTP request:

POST /cgi-bin/cstecgi.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
function=setStaticDhcpConfig&Comment=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...[long string of 'A's]...

This HTTP request would send a specially crafted ‘Comment’ argument that could overflow the buffer and potentially allow the execution of arbitrary code.

Mitigation Guidance

To mitigate this vulnerability, users are recommended to apply the vendor patch as soon as it’s available. In the meantime, users can deploy a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary solution. These systems can help detect and block attempts to exploit this vulnerability, thereby providing some degree of protection until a permanent fix is applied.

Overview

Recently, a critical vulnerability was discovered in D-Link DIR-825 2.03, a widely used version of the D-Link router. This vulnerability has been classified as a stack-based buffer overflow, which can lead to severe consequences including potential system compromise or data leakage. Given that the affected products are no longer supported by the manufacturer, it’s urgent for end-users, administrators, and organizations reliant on these products to take immediate action to mitigate the risks associated with this vulnerability.

Vulnerability Summary

CVE ID: CVE-2025-6292
Severity: Critical (CVSS: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

D-Link | DIR-825 2.03

How the Exploit Works

The vulnerability exists within the function sub_4091AC of the component HTTP POST Request Handler. An attacker can exploit this vulnerability by sending a specially crafted HTTP POST request that includes an oversized payload. The server’s buffer, unable to handle the excessive data, overflows, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

Conceptual Example Code

Here is a conceptual example of how an attacker could potentially exploit this vulnerability. This code is presented for illustrative purposes only:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "oversized_payload": "A"*10000 }

In this example, ‘A’*10000 represents an oversized payload that exceeds the buffer’s capacity, leading to buffer overflow.

Recommended Mitigation

Given that this vulnerability affects products no longer supported by the vendor, applying a vendor patch is not possible. In such circumstances, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can be configured to detect and block malicious HTTP POST requests sent to exploit this vulnerability. For a permanent solution, consider upgrading to a supported version of the product or switching to a different product entirely.

Overview

A critical vulnerability has been discovered in D-Link DIR-825 (Version 2.03), a widely used wireless router. This vulnerability, identified as CVE-2025-6291, resides in the HTTP POST request handler of the device. It is especially concerning given the device’s widespread usage and the potential for remote exploitation. The issue lies within the do_file() function, which when manipulated, leads to a stack-based buffer overflow. This type of vulnerability can potentially lead to a complete system compromise or leak sensitive data, making it a significant concern for the cybersecurity community.

Vulnerability Summary

CVE ID: CVE-2025-6291
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

D-Link DIR-825 | 2.03

How the Exploit Works

The exploit takes advantage of the vulnerability in the HTTP POST request handler’s do_file() function. By sending a specially crafted HTTP POST request, an attacker can cause a stack-based buffer overflow. This overflow happens when the system writes more data to a buffer than it can hold. The excess data can corrupt data, crash the system, or allow the execution of malicious code, potentially leading to full system control.

Conceptual Example Code

Here’s a conceptual example of how an attacker might exploit this vulnerability. This is not actual exploit code, but a simplification to illustrate the general idea:

POST /target_file HTTP/1.1
Host: vulnerable_router.example.com
Content-Type: application/x-www-form-urlencoded
file_name=<overly_long_string>&file_content=<malicious_code>

In this example, `` is a string that exceeds the buffer’s capacity, and `` represents arbitrary code that an attacker wants to execute on the system.

Mitigation Guidance

Users are advised to apply the vendor-supplied patch to address this vulnerability as soon as possible. If a patch cannot be applied immediately, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. However, these measures are not a substitute for patching the system. Please note that this vulnerability only affects products that are no longer supported by the maintainer, so upgrading to a supported product version is also advised.

Overview

In the ever-evolving landscape of cybersecurity, maintaining the integrity and security of data is of paramount importance. A recent vulnerability, CVE-2025-5071, has been identified in the AI Engine plugin for WordPress. It affects versions 2.8.0 to 2.8.3 and potentially exposes user data to unauthorized modification and loss. This vulnerability is particularly alarming because it allows authenticated attackers with subscriber-level access and above to execute commands that can lead to privilege escalation, data modification, and deletion.

Vulnerability Summary

CVE ID: CVE-2025-5071
Severity: High (CVSS 8.8)
Attack Vector: Network
Privileges Required: Low (Subscriber-level Access)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

AI Engine WordPress Plugin | 2.8.0 to 2.8.3

How the Exploit Works

The vulnerability stems from a missing capability check in the ‘Meow_MWAI_Labs_MCP::can_access_mcp’ function of the AI Engine plugin for WordPress. This flaw can be exploited by an attacker who has subscriber-level access or above to the WordPress site running the vulnerable plugin.
The attacker can leverage this vulnerability to run various commands including ‘wp_create_user’, ‘wp_update_user’ and ‘wp_update_option’, potentially leading to privilege escalation. They can also execute ‘wp_update_post’, ‘wp_delete_post’, ‘wp_update_comment’ and ‘wp_delete_comment’, which can be used to modify or delete posts and comments.

Conceptual Example Code

Assuming an attacker has authenticated access, they could potentially send a malicious HTTP request such as:

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: vulnerable.example.com
Content-Type: application/x-www-form-urlencoded
action=ai-engine-mcp&command=wp_update_user&user_id=1&role=administrator

In this conceptual example, the attacker is trying to escalate their privileges by changing the role of a user (with id 1) to ‘administrator.

Recommendations

It is imperative to mitigate this vulnerability immediately. The vendor has already provided a patch. Users are strongly advised to apply this patch at the earliest possible opportunity. If immediate application of the patch is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. Regularly updating and patching software is a critical part of maintaining strong security practices and can prevent exploitation of known vulnerabilities.

Overview

The vulnerability in focus, CVE-2025-4981, presents a significant security threat to a host of Mattermost versions. As a widely used open-source, self-hosted online chat service, Mattermost has a broad range of commercial and non-commercial users globally. The vulnerability arises from the failure of these versions to sanitize filenames in the archive extractor, thereby providing authenticated users the potential to write files anywhere on the filesystem. This vulnerability can lead to remote code execution and consequently, a considerable system compromise or data leakage.
Given the severity of the potential impact, understanding this vulnerability is of paramount importance to cybersecurity professionals, system administrators, and anyone who relies on Mattermost for their communication needs. It calls for immediate attention and mitigation to safeguard the integrity of these systems.

Vulnerability Summary

CVE ID: CVE-2025-4981
Severity: Critical (CVSS score 9.9)
Attack Vector: Network
Privileges Required: User
User Interaction: Required
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

Mattermost | 10.5.x <= 10.5.5 Mattermost | 9.11.x <= 9.11.15 Mattermost | 10.8.x <= 10.8.0 Mattermost | 10.7.x <= 10.7.2 Mattermost | 10.6.x <= 10.6.5 How the Exploit Works

The exploit leverages the vulnerability in Mattermost’s archive extraction process. An authenticated user can upload an archive with a malicious filename containing path traversal sequences. Mattermost’s failure to sanitize these filenames allows the file to be written to any location on the filesystem. This capability can lead to remote code execution if a malicious user manages to place an executable file in a directory where it can be run automatically or by a privileged user.

Conceptual Example Code

Here’s a conceptual example of how an exploit using a malicious archive might work:

POST /api/v4/files HTTP/1.1
Host: mattermost.example.com
Authorization: Bearer <access-token>
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="files"; filename="../../../etc/cron.d/malicious"
Content-Type: application/gzip
{ binary data }
------WebKitFormBoundary7MA4YWxkTrZu0gW--

In this example, an HTTP POST request is made to the Mattermost file upload API endpoint. The archive contains a file with a path traversal sequence in the filename (`../../../etc/cron.d/malicious`). This file could contain instructions for a cron job that executes a malicious script, potentially leading to remote code execution.

Overview

CVE-2025-6192 is a severe vulnerability in Google Chrome that could potentially allow an attacker to exploit heap corruption via a carefully crafted HTML page. This vulnerability is of high significance due to the widespread usage of Google Chrome as a default browser across multiple platforms, making a large number of users potentially susceptible to system compromise or data leakage. The severity of this issue is further emphasized by its high CVSS severity score of 8.8, indicating a significant impact if exploited.

Vulnerability Summary

CVE ID: CVE-2025-6192
Severity: High (CVSS Score 8.8)
Attack Vector: Web (via a crafted HTML page)
Privileges Required: None
User Interaction: Required (user must visit the attacker’s crafted HTML page)
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Google Chrome | Prior to 137.0.7151.119

How the Exploit Works

The exploit takes advantage of a “use after free” vulnerability in Metrics in Google Chrome. In essence, this means that the software continues to use a pointer after it has been freed. This can lead to two types of vulnerabilities: the software could potentially read old data or it might write data into the wrong location. In this particular exploit, a remote attacker can craft an HTML page that triggers this vulnerability, leading to heap corruption. The attacker can then use this corruption to execute arbitrary code, potentially leading to system compromise or data leakage.

Conceptual Example Code

A conceptual example of how this vulnerability might be exploited could be a malicious HTML page that triggers the use-after-free condition. This example is not real code, but is meant to illustrate the concept:

<!DOCTYPE html>
<html>
<body>
<script>
// Code that triggers the use-after-free condition in Metrics
triggerUseAfterFree();
// Code that takes advantage of the heap corruption to execute arbitrary commands
exploitHeapCorruption();
</script>
</body>
</html>

This code would need to be hosted on a webpage and the victim would need to visit this page for the exploit to be successful. It is crucial to regularly update your browser and other software to protect yourself from such vulnerabilities.

Overview

The CVE-2025-6191 vulnerability is a serious security defect found in Google Chrome’s V8 engine. This flaw, which is rated high on the Chromium security severity scale, affects all versions of Google Chrome prior to 137.0.7151.119. It’s a critical concern as it allows a remote attacker to potentially perform out of bounds memory access through a specifically crafted HTML page. Given the widespread use of Google Chrome, this vulnerability could potentially impact millions of users worldwide, posing significant risks of system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-6191
Severity: High (CVSS score 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Google Chrome | Versions prior to 137.0.7151.119

How the Exploit Works

The exploit takes advantage of an integer overflow vulnerability in Google Chrome’s V8 JavaScript engine. An attacker can create a malicious HTML page that, when loaded and executed in a vulnerable version of Google Chrome, can trigger an out-of-bounds memory access. This access could potentially allow an attacker to execute arbitrary code or expose sensitive information from the system’s memory.

Conceptual Example Code

The following is a conceptual example, in JavaScript, of how this vulnerability might be exploited:

// Hypothetical malicious JavaScript code exploiting CVE-2025-6191
let buf = new ArrayBuffer(0x100);
let uint32 = new Uint32Array(buf);
// Trigger integer overflow
for (let i = 0; i < 0x100000000; i++) {
uint32[i] = i;
}
// The overflow leads to out-of-bounds access
let oob_access = uint32[0x100000000];

Please note that this is a conceptual example and may not directly work in a real-world scenario. It is provided for educational purposes only to understand the nature of the exploit.

Mitigation Guidance

Users are strongly advised to update their Google Chrome version to 137.0.7151.119 or later, which contains the necessary security patches to address this vulnerability. If immediate update is not possible, the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation, helping to detect and prevent potential exploit attempts.