How severe is CVE-2025-61962?

CVE-2025-61962 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-61962 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61962?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-61962 have an EU (EUVD) identifier?

Yes. CVE-2025-61962 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32411.

When was CVE-2025-61962 published?

CVE-2025-61962 was published on 2025-10-04 and last updated on 2026-06-17.

CVE-2025-61962

CVE-2025-61962 is a medium-severity vulnerability with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-142.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32411
Weakness: CWE-142
Published: 2025-10-04
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-61962?: In fetchmail before 6.5.6, the SMTP client can crash when authenticating upon receiving a 334 status code in a malformed context.
How severe is CVE-2025-61962?: CVE-2025-61962 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-61962 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-61962?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-61962 have an EU (EUVD) identifier?: Yes. CVE-2025-61962 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32411.
When was CVE-2025-61962 published?: CVE-2025-61962 was published on 2025-10-04 and last updated on 2026-06-17.

References

Other CWE-142 vulnerabilities

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