CVE-2026-65421

MediumCVSS 6.5/10Last modified Oct 23, 2026

Description

The MMS BER decoder contains a flaw in decoding fixed-width BER fields (boolean/integer): an attacker-supplied length value is not validated, causing a read past the end of a heap buffer. This leads to termination of the MMS service process and a denial-of-service condition.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Jul 30, 2026
Last modified
Oct 23, 2026
NVD status
Awaiting Analysis

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CVE-2026-65421: Medium severity, CVSS 6.5 | Vulnix