Author: Ameeba

Overview

The cybersecurity landscape is under continuous evolution, with new vulnerabilities surfacing regularly. One such critical vulnerability, assigned the identifier CVE-2025-43359, has recently been uncovered, affecting multiple Apple operating systems. The significance of this vulnerability lies in its potential to enable attackers to compromise a system or leak sensitive data.
The vulnerability is linked to a logic issue with state management in Apple’s operating systems, such as tvOS, MacOS, iOS, and iPadOS. The flaw can potentially transform a seemingly benign local interface into a wide-open gateway for cyber attackers. The vulnerability is highly critical, with a Common Vulnerability Scoring System (CVSS) Severity Score of 9.8, indicative of its immense impact on affected systems.

Vulnerability Summary

CVE ID: CVE-2025-43359
Severity: Critical; CVSS score: 9.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage potentially resulting from a successful exploit

Affected Products

Product | Affected Versions

tvOS | 26
macOS Sonoma | 14.8
macOS Sequoia | 15.7
iOS | 18.7, 26
iPadOS | 18.7, 26
visionOS | 26
watchOS | 26
macOS Tahoe | 26

How the Exploit Works

The vulnerability stems from a logic flaw in the state management of Apple’s operating systems. Specifically, when a UDP server socket is bound to a local interface, it may inadvertently become bound to all interfaces. This enables an attacker to exploit the flaw by sending malicious packets to the UDP server, potentially compromising the system or causing data leakage.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited. An attacker could send a malicious payload using UDP packets to the server. Please note that this is a simplified illustration and not a real exploit code.

# Attacker's machine
echo -n "malicious_payload" > /dev/udp/target.example.com/1234

In this example, “target.example.com” represents the vulnerable server, and “1234” is the UDP port number. The “malicious_payload” is the data that the attacker wants to send to exploit the vulnerability.

Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a critical vulnerability, designated as CVE-2025-43347, affecting multiple operating systems including tvOS 26, watchOS 26, visionOS 26, macOS Tahoe 26, iOS 26, and iPadOS 26. This vulnerability is particularly concerning due to its potential for system compromise and data leakage. Given the widespread use of these operating systems across a plethora of devices, this vulnerability could have wide-reaching implications for both individual users and enterprises, underlining the urgency of its addressal.

Vulnerability Summary

CVE ID: CVE-2025-43347
Severity: Critical (9.8 CVSS score)
Attack Vector: Local network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

tvOS | 26
watchOS | 26
visionOS | 26
macOS Tahoe | 26
iOS | 26
iPadOS | 26

How the Exploit Works

The vulnerability CVE-2025-43347 is an input validation issue. This means that the affected operating systems do not validate or incorrectly validate input they receive, which an attacker can exploit to manipulate or bypass these systems. By sending malformed data or commands that the system doesn’t expect or hasn’t been programmed to handle properly, an attacker can trigger this vulnerability, potentially leading to system compromise or data leakage.

Conceptual Example Code

The below pseudocode provides a conceptual example of how this vulnerability might be exploited.

POST /vulnerableOS/inputValidation HTTP/1.1
Host: targetDevice.example.com
Content-Type: application/json
{ "malicious_payload": "bypass_validation_command" }

In this example, a malicious actor sends a POST request to an endpoint of the operating system that processes user inputs. The `malicious_payload` in the body of the request contains a command that the system does not validate correctly, allowing the attacker to exploit the vulnerability.
The vulnerability has been addressed by the vendor by removing the vulnerable code in their latest patches. Users of the affected operating systems are strongly advised to apply these patches as soon as possible to mitigate the risk. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy.

Overview

CVE-2025-43342 is a potent cybersecurity vulnerability that has been identified in several Apple operating systems. These operating systems include tvOS 26, Safari 26, iOS 18.7 and iPadOS 18.7, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. This vulnerability is critical due to its potential to cause an unexpected process crash when processing maliciously crafted web content. Consequently, this could lead to a potential system compromise or data leakage, which can have severe implications for both individual users and organizations.
This blog post aims to provide a comprehensive technical breakdown of this vulnerability, its impacts, and the recommended mitigation strategies. It’s crucial for all users and administrators of the affected operating systems to understand the gravity of this vulnerability and take immediate action to prevent potential exploitation.

Vulnerability Summary

CVE ID: CVE-2025-43342
Severity: Critical (9.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

tvOS | 26
Safari | 26
iOS | 18.7, 26
iPadOS | 18.7, 26
visionOS | 26
watchOS | 26
macOS Tahoe | 26

How the Exploit Works

An attacker exploiting the CVE-2025-43342 vulnerability would craft malicious web content to be processed by the user’s device. This could be in the form of a website, an email, or any other web content that the device could process. When the malicious content is processed, it triggers a correctness issue in the software that leads to an unexpected process crash. This crash can then be exploited by the attacker to compromise the system or leak data.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request that carries the malicious payload:

GET /malicious_website.html HTTP/1.1
Host: attacker.example.com
{ "malicious_payload": "<script>exploit_code_here</script>" }

In this example, the code inside “ tags represents the malicious code that exploits the CVE-2025-43342 vulnerability. When the device processes this request, the malicious script runs, triggering the unexpected process crash and potentially compromising the system or leaking data.

Mitigation Guidance

Users and administrators can mitigate the risks of the CVE-2025-43342 vulnerability by applying the vendor patch provided by Apple. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure by detecting and blocking attempts to exploit this vulnerability.

Overview

CVE-2025-31255 is a critical authorization flaw that affects multiple Apple platforms, including tvOS, macOS, watchOS, iOS, and iPadOS. The vulnerability exposes users to potential unauthorized access to sensitive data – a significant security risk that can lead to system compromise and data leakage. As digital privacy becomes more critical in the contemporary cyber landscape, such a vulnerability poses a substantial threat to individuals and organizations alike, requiring immediate attention and mitigation.

Vulnerability Summary

CVE ID: CVE-2025-31255
Severity: Critical (9.8 CVSS Score)
Attack Vector: Application
Privileges Required: Low level
User Interaction: Required
Impact: Potential unauthorized access to sensitive user data, which can lead to system compromise and data leakage

Affected Products

Product | Affected Versions

tvOS | 26
macOS Sonoma | 14.8
macOS Sequoia | 15.7
watchOS | 26
macOS Tahoe | 26
iOS | 26
iPadOS | 26

How the Exploit Works

The vulnerability revolves around an authorization issue that was not adequately addressed, leading to a flaw in the state management. As a result, an attacker can exploit this vulnerability by manipulating the state of the application to gain unauthorized access to sensitive user data. This could involve bypassing security measures or tricking a user into releasing their data, thereby potentially compromising the system or leading to data leakage.

Conceptual Example Code

To gain a better understanding of how an attacker might exploit this vulnerability, consider the following conceptual example. This is a hypothetical scenario where an attacker sends a malicious payload to a vulnerable endpoint in the application:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "manipulated_state_information" }

In this example, `”manipulated_state_information”` represents a manipulated state designed by the attacker to exploit the vulnerability and gain unauthorized access to the user’s sensitive data. The actual exploit would depend on the specific implementation details and state management of the application.