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

Original description

The description as published by the source.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Fix status by distribution

Fixed packages published by each distribution for this CVE

• Debian DEBIAN-CVE-2025-61962 fetchmail
• Ubuntu UBUNTU-CVE-2025-61962 fetchmail

References

• advisory github.com
• advisory nvd.nist.gov
• patch gitlab.com
• web openwall.com
• web fetchmail.info
• web openwall.com