CVE-2026-0631 Authenticated Command Injection Vulnerability in Surfshark VPN Login in multiple Archer products

High 8.5 Published Updated

An authenticated attacker on the local network can execute arbitrary code via OS command injection in the Surfshark VPN login feature of TP-Link routers.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-0631?

CVE-2026-0631 is a high-severity command injection vulnerability in TP Link Systems Inc. Archer AX10 v3, published on 2 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An OS Command Injection vulnerability exists in the Surfshark VPN login functionality in TP-Link Archer BE230 v1.2, BE3600v1, AX10 v3 and AXE75 v1, allowing an adjacent

authenticated

attacker to execute arbitrary code. Successful exploitation could allow an attacker to gain full administrative control of the device, resulting in severe compromise of configuration integrity, network security, and service availability.

This CVE covers one of multiple distinct OS command injection issues identified across separate code paths. Although similar in nature, each instance is tracked under a unique CVE ID.

This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420 and Archer AXE75 v1 < 1.5.6 Build 20260623.

Weakness: CWE-78

Which versions are affected by CVE-2026-0631?

It affects 1 product.

Products include Tp-Link Archer Be230 Firmware.

How do I fix CVE-2026-0631?

No fix has been published for CVE-2026-0631 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-0631 being exploited?

There is no known exploitation of CVE-2026-0631 in the wild and no public exploit code.

Sources

Also known as GHSA-j6g9-f586-p93v.

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