Is CVE-2025-0588 in the CISA KEV catalog?

No. CVE-2025-0588 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-0588?

CVE-2025-0588 has a CVSS v3 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2025-0588?

CVE-2025-0588 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-0588?

Upgrade octopus server to 2024.4.7091 or later.

CVE & CISA-KEV Catalog

CVE-2025-0588

MEDIUM

4.9

CVSS v3

NVD

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.

CWE-113

How to fix

Remediation Available

octopus serverNVD

Affected:>= 2024.4.401, < 2024.4.7091Fixed in:2024.4.7091CVE-2025-0588derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Vendor Advisory1

advisories.octopus.com

Other references1

advisories.octopus.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-02.