CVE-2024-21871 Privilege escalation in UEFI firmware for some Intel(R) Processors
A privileged local attacker can escalate privileges via improper input validation in Intel UEFI firmware.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-21871?
CVE-2024-21871 is a high-severity vulnerability in UEFI firmware for some Intel(R) Processors, published on 16 Sep 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
Weakness: CWE-20
Which versions are affected by CVE-2024-21871?
How do I fix CVE-2024-21871?
No fix has been published for CVE-2024-21871 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-21871 being exploited?
There is no known exploitation of CVE-2024-21871 in the wild and no public exploit code.
Sources
Also known as GHSA-34h3-77mg-mfgh.