CVE-2025-0588

Name: CVE-2025-0588
Creator: NVD / NIST
Published: 2025-02-11T12:15:34.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2025-0588 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.9/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

5.9/10

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.39%

30.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-113

Affected Software

Vendor	Product	Versions
Octopus	Octopus Server	>= 2020.1.0, < 2024.3.13097
Octopus	Octopus Server	>= 2024.4.401, < 2024.4.7091

References

https://advisories.octopus.com/post/2024/sa2025-05/Broken Link
https://advisories.octopus.com/post/2024/sa2025-05/Broken Link
https://advisories.octopus.com/post/2025/sa2025-05/Vendor Advisory

Timeline

Published: Feb 11, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-0588?

How severe is CVE-2025-0588?

CVE-2025-0588 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2025-0588?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-0588?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST