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CVE-2025-30189

Good to know:

Date: October 31, 2025

Dovecot IMAP Server: Using auth caching causes the first lookup to be cached for all lookups

Severity Score

7.4

Related Resources (6)

Url: https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json

Url: http://seclists.org/fulldisclosure/2025/Oct/29

Url: https://nvd.nist.gov/vuln/detail/CVE-2025-30189

Url: http://www.openwall.com/lists/oss-security/2025/10/29/4

Url: https://seclists.org/oss-sec/2025/q4/97

Url: https://www.mend.io/vulnerability-database/CVE-2025-30189

Severity Score

7.4

Weakness Type (CWE)

Improper Preservation of Consistency Between Independent Representations of Shared State

CWE-1250

Top Fix

Upgrade Version

Upgrade to version https://github.com/dovecot/core.git - 2.4.2

CVSS v3.1

Base Score:	7.4
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	NONE

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