CVE-2026-66360
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Jul 30, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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