CVE-2025-27087 Denial of service in HPE Cray Operating System (COS)
A local attacker can cause a Denial of Service in the HPE Cray Operating System kernel.
- 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-2025-27087?
CVE-2025-27087 is a medium-severity denial of service vulnerability in Hewlett Packard Enterprise (HPE) HPE Cray Operating System (COS), published on 22 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the kernel of the Cray Operating System (COS) could allow an attacker to perform a local Denial of Service (DoS) attack.
Weakness: CWE-400
Which versions are affected by CVE-2025-27087?
How do I fix CVE-2025-27087?
No fix has been published for CVE-2025-27087 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-27087 being exploited?
There is no known exploitation of CVE-2025-27087 in the wild and no public exploit code.
Sources
Also known as GHSA-mwgr-p983-v4m9.