Resource exhaustion in Hewlett Packard Enterprise (HPE) HPE Cray Operating System (Cos)

CVE-2025-27087

A vulnerability in the kernel of the Cray Operating System (COS) could allow an attacker to perform a local Denial of Service (DoS) attack.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-27087: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-27087?
CVE-2025-27087 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) HPE Cray Operating System (Cos), classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2025-04-22.
How severe is CVE-2025-27087?
Medium severity. CVSS v3 base score is 5.5 out of 10.