# CVE-2025-30189

## Summary

- **CVE ID:** CVE-2025-30189
- **Severity:** HIGH
- **CVSS Score:** 7.4 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-1250
- **Published:** Oct 31, 2025
- **Last Modified:** Mar 27, 2026

## Description

When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known.

## Affected Products

- Open-Xchange GmbH — OX Dovecot Pro (0)

## References

- [CNA](https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json)
- [CVE](http://seclists.org/fulldisclosure/2025/Oct/29)
- [CVE](http://www.openwall.com/lists/oss-security/2025/10/29/4)
- [CNA](https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.54%
- **EPSS Percentile:** 43.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._