PT-2026-65866 · Tp Link Systems · Tl-Wr940N V6

CVE-2026-12935 · Published 2026-07-29 · Updated 2026-07-29

Mitre

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

The TL-WR940N v6 router contains a vulnerability in its RTSP connection tracking module that can lead to a stack-based buffer overflow. The issue occurs when a LAN client initiates a connection to a malicious RTSP server controlled by an attacker. A specially crafted RTSP message may trigger improper memory handling within the kernel module

Successful exploitation of this vulnerability may result in a denial-of-service (DoS) condition or allow remote code execution (RCE), potentially leading to full compromise of the device. This vulnerability can be exploited by an unauthenticated attacker under the device's default configuration.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-12935

Affected Products

Tl-Wr940N V6

References · 5

• https://tp-link.com/jp/support/download/tl-wr940n/v6/#Firmware · Patch
• https://tp-link.com/us/support/download/tl-wr940n/v6/#Firmware · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-12935 · Security Note
• https://tp-link.com/us/support/faq/5213 · Vendor Advisory
• https://tp-link.com/en/support/download/tl-wr940n/v6/#Firmware · Patch