Is CVE-2025-30189 in the CISA KEV catalog?

No. CVE-2025-30189 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-30189?

CVE-2025-30189 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2025-30189?

CVE-2025-30189 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30189?

Upgrade dovecot on debian 13 to 1:2.4.1+dfsg1-6+deb13u1 or later.

CVE & CISA-KEV Catalog

CVE-2025-30189

HIGH

7.4

CVSS v3

NVD

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.

CWE-1250

How to fix

Remediation Available

dovecotDebian

Fixed in:1:2.4.1+dfsg1-6+deb13u1CVE-2025-30189

Fixed in:1:2.4.1+dfsg1-7CVE-2025-30189

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-1250 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-10976	Medium	4.2	0.8%	-	Fix
CVE-2023-22405	Medium	6.5	0.3%	-	Fix
CVE-2022-22234	Medium	5.5	0.2%	-	Fix
CVE-2025-32899	Medium	4.3	0.2%	-	-

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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 2026-03-27.