A buffer overflow vulnerability was discovered in TP-Link TL-WR841ND V11 via the 'gw' parameter at /userRpm/WanDynamicIpV6CfgRpm.htm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet. With a CVSS base score of 3.5, this vulnerability is classified as low severity. Despite its low severity, organizations using the affected product should take immediate action to address this vulnerability.
Risk to organizations includes potential service disruptions that could affect availability. The vulnerability has been analyzed thoroughly, and it is essential for organizations to prioritize patching to maintain operational integrity.
Currently, there is no public exploit confirmed, and the vulnerability is not present in the KEV (Known Exploited Vulnerabilities) catalog. However, organizations should remain vigilant and monitor for any updates or advisories related to this issue.
Organizations should address this vulnerability in their priority patch cycle to mitigate potential risks associated with exploitation.
Vulnerability Details
The CVE-2025-25899 vulnerability has a CVSS score of 3.5, indicating a low severity level. The vulnerability type is classified as a buffer overflow, allowing attackers to exploit the 'gw' parameter in the firmware. The affected product is the TP-Link TL-WR841ND V11 Firmware. The vulnerability was published on February 13, 2025, and analyzed thoroughly, revealing its potential impact.
Technical Analysis
The root cause of this vulnerability is a buffer overflow in the handling of the 'gw' parameter. The attack vector is network-based, requiring low privileges and no user interaction. Although the attack complexity is high, the impact can lead to a Denial of Service (DoS), affecting availability. Organizations using the affected firmware should ensure they have appropriate defenses in place to monitor and respond to any unusual network traffic that may indicate an attempt to exploit this vulnerability.
Risk & Impact Analysis
Real-world deployment of the TP-Link TL-WR841ND V11 Firmware may expose organizations to risks associated with service disruption. The blast radius is limited to devices running the vulnerable firmware, but the potential for Denial of Service can impact organizational operations significantly. Given the low CVSS score, organizations should assess the urgency of remediation based on their operational dependencies on affected devices.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is the TP-Link TL-WR841ND V11 Firmware. If version information is missing, organizations should consider all versions prior to the vendor patch as vulnerable.
Mitigation & Remediation
Organizations should prioritize patching the TP-Link TL-WR841ND V11 Firmware to mitigate the risks associated with CVE-2025-25899. In the absence of an immediate patch, consider implementing network controls to limit exposure to potential exploitation. For detailed guidance on security testing, organizations can refer to the penetration testing methodologies that can help identify and remediate vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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