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TI-2025-27105 Aliases CVE-2025-40634GHSA-h754-2839-mqvq

Stack-based buffer overflow in TP-Link Archer AX50

Priority MEDIUM 43CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00682 52nd percentileScored 2026-11-07
Fix Fixed Link Archer AX50 (TP-Link): 1.0.15 build 241203 rel61480

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-LinkLink Archer AX50before 1.0.15 build 241203 rel614801.0.15 build 241203 rel61480Patch availableCNA
  • Link Archer AX50 VendorTP-Link Affected before 1.0.15 build 241203 rel61480 Fixed in 1.0.15 build 241203 rel61480 Patch available CNA

Remediation

  • Fix · CNA Link Archer AX50 (TP-Link) Fixed in 1.0.15 build 241203 rel61480

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40634
  2. 2026-10-03 Alias added: GHSA-h754-2839-mqvq

References

Other 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-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
See all 636 →

Sources

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