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TI-2024-36696 Aliases CVE-2024-54887GHSA-qf55-97mm-vqcj

TP-Link TL-WR940N V3 and V4 with firmware 3.16.9 and earlier contain a buffer overflow…

Priority MEDIUM 46CWE-120Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
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 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

TP-Link TL-WR940N V3 and V4 with firmware 3.16.9 and earlier contain a buffer overflow via the dnsserver1 and dnsserver2 parameters at /userRpm/Wan6to4TunnelCfgRpm.htm. This vulnerability allows an authenticated attacker to execute arbitrary code on the remote device in the context of the root user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.06576 93rd 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr940n_firmware:*:*:*:*:*:*:*:*up to 3.16.9VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr940n:v3:*:*:*:*:*:*:*v3Running onTP-Link
cpe:2.3:h:tp-link:tl-wr940n:v4:*:*:*:*:*:*:*v4Running onTP-Link
  • cpe:2.3:o:tp-link:tl-wr940n_firmware:*:*:*:*:*:*:*:* Versions up to 3.16.9 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr940n:v3:*:*:*:*:*:*:* Versions v3 Running on ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr940n:v4:*:*:*:*:*:*:* Versions v4 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-54887
  2. 2026-10-03 Alias added: GHSA-qf55-97mm-vqcj

References

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
  • TI-2025-05561 TP-Link TL-WR940N, TL-WR841N WanSlaacCfgRpm.htm buffer overflow CVSS 4.0HIGH 8.2
  • TI-2023-18224 TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart… CVSS 3.1CRITICAL 9.9
  • TI-2019-04924 TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper… CVSS 3.0HIGH 8.8
  • TI-2026-09847 OS Command Injection in BigPond Cable (BPA) Configuration in TP-Link TL-WR940N CVSS 4.0HIGH 8.5
See all 21 →

Sources

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