CVE-2026-3227
Authenticated RCE via config import on TP-Link TL-WR802N/841N/840N.
Is CVE-2026-3227 being exploited?
Not confirmed. CVE-2026-3227 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 1.9% probability of exploitation in the next 30 days.
How severe is CVE-2026-3227?
CVE-2026-3227 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-2026-3227?
Yes. A fix has been recorded for CVE-2026-3227. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-3227 affect?
CVE-2026-3227 affects TP-Link TL-WR802N v4, TP-Link TL-WR841N v14, TP-Link TL-WR840N v6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3227?
Patch firmware when released; restrict config-import access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Root-level command execution via crafted import file; full device takeover.
Immediate action required
- affected< V4_260304
- affected< V6_260304
- affected< V14_260303
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.