CVE-2026-66349
Medium · 6.5CVSS
6.5
EPSS
0.3%
Published
Jul 30, 2026
CISA due date
—
The record
The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its internal buffer incorrectly due to a missing bounds check. This results in a one byte heap out-of-bounds read and causes the MMS service process to terminate, leading to a denial-of-service condition.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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