Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
8.8

TP-Link TL-WR841N firmware lets logged-in users run commands

CVE-2018-12577 · published 8 years ago
Summary

The Ping and Traceroute tools in the TL-WR841N router firmware can be tricked by an attacker who already has a valid username and password to execute arbitrary system commands. This could let a malicious user take control of the router or disrupt network traffic. Apply the latest firmware update from TP‑Link as soon as possible to close the issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
tp-link tl-wr841n_firmware 0.9.1_4.16
cpe:2.3:o:tp-link:tl-wr841n_firmware:0.9.1_4.16:*:*:*:*:*:*:*
Original advisory text
The Ping and Traceroute features on TP-Link TL-WR841N v13 00000001 0.9.1 4.16 v0001.0 Build 180119 Rel.65243n devices allow authenticated blind Command Injection.
The Ping and Traceroute features on TP-Link TL-WR841N v13 00000001 0.9.1 4.16 v0001.0 Build 180119 Rel.65243n devices allow authenticated blind Command Injection.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
8.8 High
Exploitation
3% chance of attack within 30 days
Type
CWE-78OS Command Injection
Timeline
Published2 Jul 2018
Updated30 Oct 2026
First seen29 Sep 2026
Sources
CVE-2018-12577 · NVD
Track software like this
Free during beta