Base Score

MEDIUM5.9

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.

VectorNETWORK

Published Bycve@mitre.org

Published DateOct 04, 2025, 03:15

Weakness Type (CWE):CWE-142

CVSS Metrics

Base Score

5.9

Vector String

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

Base Severity

MEDIUM

Version

3.1

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

HIGH

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

UNCHANGED

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

HIGH

References

https://gitlab.com/fetchmail/fetchmail/-/commit/4c3cebfa4e659fb778ca2cae0ccb3f69201609a8
https://www.fetchmail.info/fetchmail-SA-2025-01.txt
https://www.openwall.com/lists/oss-security/2025/10/03/2
http://www.openwall.com/lists/oss-security/2025/10/04/3

Base Score

MEDIUM5.9

Weakness Type (CWE):CWE-142

CVSS Metrics

Base Score

5.9

Vector String

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

Base Severity

MEDIUM

Version

3.1

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

HIGH

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

UNCHANGED

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

HIGH