CVE-2025-61962

Medium

Description

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

SeverityMedium
CVSS5.9
Exploit probability—
ProductFetchmail
PublishedOct 4, 2025
First seenOct 4, 2025
Weakness typeCWE-142CWE-142

How to fix

Update
  • fetchmail fetchmail6.5.6 or later

Affected products

ProductAffected versionsFixed in
fetchmail fetchmail5.9.9 ≤ v < 6.5.66.5.6

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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