MEDIUMVulnerability
CVE-2026-66349
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.
Properties
- severity
- MEDIUM
- score
- 6.5
- epss_score
- 0.00181
- cve_id
- CVE-2026-66349
- vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-07-30T23:16:52.920
- last_modified
- 2026-09-08T19:30:43.093
- epss_percentile
- 0.0773
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Out-of-bounds Read
DESCRIBED_BY (1)
→[Source]NVD
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