CVE-2026-53477 Race condition in Dell Command Update (DCU)

High 7.8 Published Updated

A local low-privileged attacker can exploit a race condition in Dell Command Update to elevate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-53477?

CVE-2026-53477 is a high-severity vulnerability in Dell Command Update (DCU), published on 19 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.

Weakness: CWE-367

Which versions are affected by CVE-2026-53477?

It affects 1 product.

Products include Dell Command Update.

How do I fix CVE-2026-53477?

No fix has been published for CVE-2026-53477 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-53477 being exploited?

There is no known exploitation of CVE-2026-53477 in the wild and no public exploit code.

Sources

Also known as GHSA-pfg3-cwvg-6jfv.

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