CVE-2026-20707 Race condition in 3rd Gen Intel(R) Xeon(R) Scalable Processors
Unprivileged local software can trigger a race condition in Intel Xeon processors, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-20707?
CVE-2026-20707 is a medium-severity vulnerability in 3rd Gen Intel(R) Xeon(R) Scalable Processors, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivileged software may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.
Weakness: CWE-1298
Which versions are affected by CVE-2026-20707?
How do I fix CVE-2026-20707?
Apply the vendor's patch.
Is CVE-2026-20707 being exploited?
There is no known exploitation of CVE-2026-20707 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-20707, DEBIAN-CVE-2026-20707, GHSA-f6fv-42vr-3qvp, UBUNTU-CVE-2026-20707.