CVE-2026-14157 Command injection in Router

Critical 9.4 Published Updated

Remote authenticated users can execute arbitrary commands on ASUS routers via crafted file uploads exploiting format string vulnerabilities.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-14157?

CVE-2026-14157 is a critical command injection vulnerability in ASUS Router, published on 1 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Use of an Externally Controlled Format String in the ASUS Router modules allow a remote authenticated user to execute arbitrary commands via a crafted file uploaded through the web management interface.

Weakness: CWE-134

Which versions are affected by CVE-2026-14157?

How do I fix CVE-2026-14157?

No fix has been published for CVE-2026-14157 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-2026-14157 being exploited?

There is no known exploitation of CVE-2026-14157 in the wild and no public exploit code.

Sources

Also known as GHSA-j8q5-whhx-5847.

Is CVE-2026-14157 in your software?

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