CVE-2025-9377: TP-Link Archer C7 and TL-WR841N OS command injection in Parental Control

CVE-2025-9377 · Severity: critical · CVSS 7.2 · Exploited in the wild · Published 2025-09-03

TP-Link Archer C7 and TL-WR841N routers contain a security flaw in their Parental Control management page. An attacker with administrative access can take full control of the device to monitor traffic or disrupt internet services. Because these devices are end-of-life, users are strongly encouraged to replace them with modern hardware.

Technologies: TP-Link Archer C7, TP-Link Multiple Routers, TP-Link TL-WR841N. Vendors: TP-Link.

Quick answers

Is CVE-2025-9377 exploited in the wild?
Yes. CVE-2025-9377 is known to be exploited in the wild, first recorded on 3 September 2025. Treat it as urgent.
How severe is CVE-2025-9377?
Critical severity, with a CVSS score of 7.2, published 3 September 2025.
Which products and versions are affected?
TP-Link Archer C7 Before 241108; TP-Link TL-WR841N Before 241108; TP-Link TL-WR841ND Before 241108.
Is there a fix for CVE-2025-9377?
A patch was published on 2025-11-08: Firmware version 241108 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-9377 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-9377?
Check whether you run TP-Link Archer C7, TP-Link Multiple Routers, TP-Link TL-WR841N or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in the Parental Control interface of several TP-Link router models. The flaw allows an authenticated attacker with high privileges to execute arbitrary system commands via the web management interface. This can lead to full remote code execution (RCE) on the underlying operating system. The vulnerability is confirmed to be exploited in the wild. While the products are end-of-life (EoL), TP-Link has released a patch (version 241108) for users unable to immediately replace the hardware.

Affected products

  • TP-Link Archer C7 (EU) V2 Before 241108
  • TP-Link TL-WR841N V9 Before 241108
  • TP-Link TL-WR841ND V9 Before 241108

Timeline

  • 2025-08-29: disclosed: Initial disclosure by TP-Link
  • 2025-09-03: kev added: Added to CISA Known Exploited Vulnerabilities catalog
  • 2025-11-08: patched: Firmware version 241108 released

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.