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.
Conclusion & alert: CVE-2025-0589 is rated Moderate Risk (46/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.29%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-22 | 0.24% | 0.29% | +0.05% |
| 2 | 2026-03-03 | 0.11% | 0.24% | +0.13% |
| 3 | 2025-10-13 | — | 0.11% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| octopus | octopus_server | >= 2020.3.3, < 2024.3.13071 | cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:* |
| octopus | octopus_server | >= 2024.4.401, < 2024.4.7065 | cpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://advisories.octopus.com/post/2025/sa2025-01/ | Vendor Advisory |