CVE-2026-11409
Authenticated OS command injection in TL-WR940N v6 PPPoE handler.
Is CVE-2026-11409 being exploited?
Not confirmed. CVE-2026-11409 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 2.8% probability of exploitation in the next 30 days.
How severe is CVE-2026-11409?
CVE-2026-11409 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-11409?
Yes. A fix has been recorded for CVE-2026-11409. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11409 affect?
CVE-2026-11409 affects TP-Link TL-WR940N v6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11409?
Secure admin access and monitor; apply firmware updates when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated admin can run arbitrary OS commands with elevated privileges on the router via PPPoE config handler.
Monitor only
- affected< V6_260528
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.