CVE-2026-66360 — MZ Automation libiec61850 Out-of-bounds Read
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 prese…
Published: 2026-07-30 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7