SEPTEMBER 19, 2026
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Case File

CVE-2026-66349

MEDIUM · CVSS 6.5 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-30 · Last synced 2026-08-29

CyberRota Analysis

AI-Generated

The vulnerability exists in the MMS server connection handler, which improperly processes BER-encoded request data, allowing for a heap out-of-bounds read due to a missing bounds check. This flaw can lead to the termination of the MMS service process, resulting in a denial-of-service condition. Organizations using the affected MMS server should prioritize remediation to prevent service disruptions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-66349
Severity
MEDIUM
CVSS
6.5
EPSS
0.18%

Original NVD Description

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.