CVE-2025-40634

Stack-based buffer overflow in TP-Link Archer AX50

Description

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.

Remediation

Solution:

  • The vulnerability has been fixed by the TP-Link team in firmware version 1.0.15 build 241203 rel61480.

Category

9.2
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.02%
Affected: TP-Link Link Archer AX50
Published at:
Updated at:

References

Link Tags
https://www.incibe.es/en/incibe-cert/notices/aviso/stack-based-buffer-overflow-tp-link-archer-ax50

Frequently Asked Questions

What is the severity of CVE-2025-40634?
CVE-2025-40634 has been scored as a critical severity vulnerability.
How to fix CVE-2025-40634?
To fix CVE-2025-40634: The vulnerability has been fixed by the TP-Link team in firmware version 1.0.15 build 241203 rel61480.
Is CVE-2025-40634 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-40634 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-40634?
CVE-2025-40634 affects TP-Link Link Archer AX50.
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