CVE-2026-66360
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Jul 30, 2026
Vendor
unknown
Description
The ISO Presentation layer contains a flaw in the handling of specific parameters during normal mode negotiation. A missing length check in the processing of the encoded presentation data allows an attacker controlled field with a zero length value to trigger a bounded heap over read. This condition occurs before MMS session establishment, a crafted TCP/102 connection attempt can trigger the issue. The resulting over read causes the process to terminate, leading to a denial of service condition.