CVE-2026-12935: TP-Link Systems Inc. TL-WR940N v6 vulnerability

1. In CISA KEV: not seen
2. Exploited (reported): not seen
3. Scanning observed: not seen
4. Proof of concept public: not seen
5. Not establishedNothing in the sources we check

DescriptionNVD

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.

Exploitation

Unlikely (under 1%). EPSS under 1%, or no score yet.

CISA KEV

Not listed

Public check

No public nuclei template

Weakness

Stack-based Buffer Overflow · Memory Corruption

Vendor

TP-Link Systems Inc.

Published

July 2026

Band

Unlikely (under 1%), July 2026

• NVD entrynvd.nist.gov
• Vendor advisorytp-link.com
• CVE recordcve.org
• Weakness CWE-121cwe.mitre.org