CVE-2025-0588
low-risk
Published 2025-02-11
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.
Do I need to act?
-
0.38% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.9/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (3)
Vendor Advisory
https://advisories.octopus.com/post/2025/sa2025-05/
26
/ 100
low-risk
Severity
20/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal