CVE Catalog

CVE-2026-66360

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.28%

20th percentile - higher than 20% of all known CVEs

Summary

The ISO Presentation layer has a flaw in handling parameters during normal mode negotiation. A missing length check allows an attacker-controlled zero-length field to trigger a bounded heap over read before MMS session establishment. A crafted TCP/102 connection can cause the process to terminate, leading to a denial of service.

Risk Assessment

A remote attacker can crash the process, causing service disruption and potentially impacting industrial systems.

Recommendation

Apply a security update from the vendor of the software implementing the ISO Presentation layer.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS