How severe is CVE-2025-0589?

CVE-2025-0589 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-0589 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-0589?

CVE-2025-0589 affects Octopus Octopus Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-0589?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-0589 have an EU (EUVD) identifier?

Yes. CVE-2025-0589 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-1784.

When was CVE-2025-0589 published?

CVE-2025-0589 was published on 2025-02-11 and last updated on 2026-06-17.

CVE-2025-0589

CVE-2025-0589 is a medium-severity vulnerability in Octopus Octopus Server with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-648.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-1784
Weakness: CWE-648
Affected product: Octopus Octopus Server
Published: 2025-02-11
Last modified: 2026-06-17

Description

In affected versions of Octopus Deploy where customers are using Active Directory for authentication it was possible for an unauthenticated user to make an API request against two endpoints which would retrieve some data from the associated Active Directory. The requests when crafted correctly would return specific information from user profiles (Email address/UPN and Display name) from one endpoint and group information ( Group ID and Display name) from the other. This vulnerability does not expose data within the Octopus Server product itself.

Frequently asked questions

What is CVE-2025-0589?: In affected versions of Octopus Deploy where customers are using Active Directory for authentication it was possible for an unauthenticated user to make an API request against two endpoints which would retrieve some data from the associated Active Directory. The requests when crafted correctly would return specific information from user profiles (Email address/UPN and Display name) from one endpoint and group information ( Group ID and Display name) from the other. This vulnerability does not expose data within the Octopus Server product itself.
How severe is CVE-2025-0589?: CVE-2025-0589 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-0589 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-0589?: CVE-2025-0589 affects Octopus Octopus Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-0589?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-0589 have an EU (EUVD) identifier?: Yes. CVE-2025-0589 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-1784.
When was CVE-2025-0589 published?: CVE-2025-0589 was published on 2025-02-11 and last updated on 2026-06-17.

References

https://advisories.octopus.com/post/2025/sa2025-01/

Affected products (1)

cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*

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