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.
Metrics
Affected Vendors & Products
References
History
Fri, 31 Jul 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 31 Jul 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mz-automation
Mz-automation libiec61850 |
|
| Vendors & Products |
Mz-automation
Mz-automation libiec61850 |
Thu, 30 Jul 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | MZ Automation libiec61850 Out-of-bounds Read | |
| Weaknesses | CWE-125 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: icscert
Published:
Updated: 2026-07-31T15:50:41.354Z
Reserved: 2026-07-27T19:32:49.407Z
Link: CVE-2026-66360
Updated: 2026-07-31T15:50:33.546Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-31T19:15:18Z