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TI-2023-20603 Aliases CVE-2023-39471GHSA-ff5w-vxjm-5vxf

OS command injection in TP-Link TL-WR841N

Priority MEDIUM 42CWE-78Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ated_tp service. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21825.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00913 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkTL-WR841N4.19—No fix listedCNA
  • TL-WR841N VendorTP-Link Affected 4.19 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*before 231119VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr841n:v14:*:*:*:*:*:*:*v14Running onTP-Link
cpe:2.3:o:tp-link:tl-wr840n_firmware:*:*:*:*:*:*:*:*before 231121VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*6.20Running onTP-Link
  • cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:* Versions before 231119 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr841n:v14:*:*:*:*:*:*:* Versions v14 Running on ·TP-Link
  • cpe:2.3:o:tp-link:tl-wr840n_firmware:*:*:*:*:*:*:*:* Versions before 231121 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:* Versions 6.20 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39471
  2. 2026-10-03 Alias added: GHSA-ff5w-vxjm-5vxf

References

Advisory 1

  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
  • TI-2021-18357 The PING function on the TP-Link TL-WR840N EU v5 router with firmware through… CVSS 3.1CRITICAL 9.8
  • TI-2018-08378 An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608… CVSS 3.0CRITICAL 9.8
  • TI-2022-08817 TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
  • TI-2026-02790 Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N CVSS 4.0HIGH 8.5
  • TI-2022-08816 TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences