Vulnerability in Linux Kernel
CVE-2025-0588
In affected versions of Octopus Server it was possible for a user with sufficient access to set custom headers in all server responses. By submitting a specifically crafted referrer header the user could ensure that all subsequent server responses would return 500 errors rendering the site mostly unusable. The user would be able to subsequently set and unset the referrer header to control the denial of service state with a valid CSRF token whilst new CSRF tokens could not be generated.
EPSS: 0.004 (33.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Microsoft Windows
- Octopus Octopus_server
- Octopus Deploy Server — versions 2020.1.0, 2024.4.401
Weakness classification (CWE)
References
- security@octopus.com (Broken Link)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-0588?
- CVE-2025-0588 is a medium-severity vulnerability in Linux Kernel, classified under HTTP Response Splitting. CVSS score: 4.9/10. Published 2025-02-11.
- How severe is CVE-2025-0588?
- Medium severity. CVSS v3 base score is 4.9 out of 10.