Is CVE-2025-61962 in the CISA KEV catalog?

No. CVE-2025-61962 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-61962?

CVE-2025-61962 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2025-61962?

CVE-2025-61962 has an EPSS score of 0.38% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61962?

Upgrade fetchmail on debian unstable to 6.5.6-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-61962

MEDIUM

5.9

CVSS v3

NVD

Description

In fetchmail before 6.5.6, the SMTP client can crash when authenticating upon receiving a 334 status code in a malformed context.

CWE-142

How to fix

Remediation Available

fetchmailDebian

Fixed in:6.5.6-1CVE-2025-61962

fetchmailUbuntu

Fixed in:6.4.27-1ubuntu0.1USN-7838-1

Fixed in:6.4.38-1ubuntu4.1USN-7838-1

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.38%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Other references4

Related Vulnerabilities

Other CWE-142 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-1774	Unscored	-	0.5%	-	-

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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 2025-11-04.