8.5

CVE-2026-11409: tp-link systems inc. tl-wr940n v6 OS Command Injection

CVSS: 8.5v4.0HighAnalyzed
Published 16-06-2026Last modified 18-06-2026
Open JSON

Vulnerability summary

CVE-2026-11409 is a high (CVSS 8.5) OS Command Injection vulnerability in tp-link systems inc. tl-wr940n v6. EPSS estimates a 2.79% chance of exploitation in the next 30 days, higher than 86.2% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.5/10
010
High · v4.0 (CVE.org)
EPSS score
2.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-06-2026
    PublishedVulnerability first disclosed.
  2. 18-06-2026
    Last modifiedVulnerability information updated.

Description

An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.79%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

0.00 pp

From 2.79% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Tp-link1 product
Tp-link systems inc.1 product

2 vendors · 2 products

References

3 links