CVE-2024-21859 Information disclosure in Intel(R) Processors

Medium 6.8 Published Updated

A privileged local attacker can exploit improper buffer restrictions in Intel UEFI firmware to disclose sensitive information.

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-2024-21859?

CVE-2024-21859 is a medium-severity vulnerability in Intel(R) Processors, published on 12 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper buffer restrictions in the UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

Weakness: CWE-119

Which versions are affected by CVE-2024-21859?

How do I fix CVE-2024-21859?

No fix has been published for CVE-2024-21859 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-21859 being exploited?

There is no known exploitation of CVE-2024-21859 in the wild and no public exploit code.

Sources

Also known as GHSA-vcrj-34mv-cmcg.

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