CVE-2025-9377 — TP-Link Archer C7(EU) and TL-WR841N/ND(MS) OS Command Injection Vulnerability

The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9.

01What is this vulnerability?

The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9.

02Affected products

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-09-03. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-08-29T17:30:33.700Z
• Last modified: 2026-02-26T17:47:46.853Z
• Added to CISA KEV: 2025-09-03
• BOD 22-01 due: 2025-09-24

09References

• www.tp-link.com — https://www.tp-link.com/us/support/faq/4365/
• www.tp-link.com — https://www.tp-link.com/us/support/faq/4308/