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Vulnerability record · CVE-2025-11676 · published 20 November 2025

CVE-2025-11676: Improper input validation vulnerability

Improper input validation vulnerability in TP-Link System Inc. TL-WR940N V6 (UPnP modules), which allows unauthenticated adjacent attackers to perform DoS attack. This issue affects TL-WR940N V6 <= Build 220801.

7.1 CVSS 4.0 High EPSS 0.19% · top 91.9% CWE-20 · Improper input validation Deferred
7.1CVSS 4.0 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Improper input validation vulnerability in TP-Link System Inc. TL-WR940N V6 (UPnP modules), which allows unauthenticated adjacent attackers to perform DoS attack. This issue affects TL-WR940N V6 <= Build 220801.

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware
https://www.tp-link.com/en/support/faq/4755/
https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware

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Source: NIST National Vulnerability Database (record CVE-2025-11676), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.