CVE-2026-66369 — MZ Automation libiec61850 Out-of-bounds Read
The GOOSE parser contains an off-by-one boundary-handling flaw that can be triggered by a single unauthenticated Layer-2 multicast frame on the process bus. When specific GOOS…
Published: 2026-07-30 · CVSS: 7.1 · CVSS 4.0
The GOOSE parser contains an off-by-one boundary-handling flaw that can be triggered by a single unauthenticated Layer-2 multicast frame on the process bus. When specific GOOSE message fields are processed, the parser advances its internal buffer position incorrectly, resulting in a heap out-of-bounds read. On affected platforms, this condition reliably terminates the subscriber process and causes a denial-of-service.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7