CVE-2025-25899: tl-wr841nd v11 (CVSS 3.5)

Description

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.

Is your site exposed to CVE-2025-25899?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

3.5

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L

Weakness Type (CWE)

CWE-404 CWE-404

Affected Products

Vendor	Product	Versions
tp-link	tl-wr841nd_v11_firmware	All
tp-link	tl-wr841nd_v11	All

References

Other References

https://github.com/2664521593/mycve/blob/main/TP-Link/BOF_in_TP-Link_TL-WR841ND-V11_2.pdf

Frequently Asked Questions

What is CVE-2025-25899? +

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. It has a CVSS v3.1 base score of 3.5 (LOW).

How severe is CVE-2025-25899? +

CVE-2025-25899 has a CVSS v3.1 score of 3.5 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-25899? +

CVE-2025-25899 affects products from tp-link, specifically: tl-wr841nd_v11, tl-wr841nd_v11_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-25899? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-6202

Vulnerability in SK Hynix DDR5 on x86 allows a local attacker to trigger Rowhammer bit flips impacting the Hardware Integrity …

CVE-2026-45174

Idira Endpoint Privilege Manager Linux Agent versions prior to 26.5 allow a local attacker to potentially compromise the agent daemon …

CVE-2026-17610

In SiSDK v2026.6.0 and earlier, high network traffic loads can cause a dropped ACK leading to a denial of service. …

CVE-2026-11317

A denial of service security issue exists in the affected product. The security issue stems from a fault occurring when …

CVE-2024-31611 9.1

SeaCMS 12.9 has a file deletion vulnerability via admin_template.php.

CVE-2026-41869 9.1

Missing Authorization, Improper Resource Shutdown and Job Interruption vulnerability in Apache Nutch Server (Nutch REST API). This issue affects Apache …

CVE-2025-25899