CVE-2025-29635 is a command injection vulnerability present in the D-Link DIR-823X firmware versions 240126 and 240802. This flaw allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting. This vulnerability is classified as high severity due to its potential for remote command execution, which can lead to significant security breaches.
The CVSS score for this vulnerability is 7.2, indicating a high level of risk. Attackers may leverage this vulnerability to gain unauthorized access and control over affected devices. Organizations using these devices should prioritize immediate action due to the critical nature of this vulnerability.
It is essential for organizations to remain vigilant and take preventive measures to address this vulnerability. Failure to patch could lead to unauthorized access and potential exploitation by malicious actors.
Organizations should prioritize patching immediately.
Vulnerability Details
The official description of CVE-2025-29635 details a command injection vulnerability in D-Link DIR-823X 240126 and 240802. This vulnerability allows an authorized attacker to execute arbitrary commands on remote devices through the /goform/set_prohibiting endpoint. The CVSS score of 7.2 categorizes this vulnerability as high severity, indicating significant risk to affected systems.
The vulnerability is classified under CWE-77, representing command injection weaknesses. The attack vector is network-based, requiring high privileges for exploitation but no user interaction. The impacts on confidentiality, integrity, and availability are all rated high, emphasizing the critical need for remediation.
Technical Analysis
The root cause of this vulnerability lies in insufficient input validation within the firmware, allowing for command injection. Attackers can exploit this flaw by sending crafted POST requests to the vulnerable endpoint, leading to arbitrary command execution on the device. The attack complexity is low, and high privileges are required to trigger the vulnerability, making it accessible to any authorized user.
The attack vector is network-based, allowing attackers to execute commands remotely. User interaction is not required, making this vulnerability particularly dangerous. The impacts on confidentiality, integrity, and availability are all rated as high, indicating that successful exploitation could lead to severe consequences.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-29635 is significant. D-Link DIR-823X devices are commonly used in various environments, making them attractive targets for attackers. If exploited, this vulnerability could lead to unauthorized access, allowing attackers to execute arbitrary commands and potentially compromise sensitive information.
Organizations utilizing these devices should consider the potential blast radius of this vulnerability. The risk to organizations includes data breaches, loss of confidentiality, and operational disruptions. Given the CVSS score of 7.2 and the presence in the Known Exploited Vulnerabilities catalog, organizations should address this vulnerability in priority patch cycles.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions are D-Link DIR-823X firmware versions 240126 and 240802. Organizations should note that all versions prior to vendor patch are susceptible to this vulnerability.
Mitigation & Remediation
Organizations should apply the necessary patches provided by D-Link to remediate this vulnerability. Users are advised to check for firmware updates and apply them immediately. In the absence of a patch, organizations should consider discontinuing the use of affected devices or implementing network controls to mitigate the risk.
For further guidance, organizations can refer to the vendor's support announcement. Regular penetration testing can also help identify similar weaknesses in the environment. More information can be found in our guide on penetration testing and security assessments.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual POST requests to the /goform/set_prohibiting endpoint. Behavioral anomalies indicative of command execution should also be tracked. Network signatures may help identify unauthorized access attempts or command executions.
AppSecure Threat Intelligence Insight
CVE-2025-29635 highlights the ongoing challenges in securing network devices against command injection vulnerabilities. Security teams should prioritize regular software updates and vulnerability assessments to mitigate risks associated with such vulnerabilities. The presence of this vulnerability in the Known Exploited Vulnerabilities catalog underscores its relevance and the need for immediate action.
Organizations should implement a comprehensive vulnerability management program to identify and remediate vulnerabilities efficiently. Regular training for staff on security best practices is vital to prevent exploitation. For further information on managing vulnerabilities, consider our resources on penetration testing methodology and security testing best practices to strengthen overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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