CVE-2026-56758
MZ Automation libiec61850 Out-of-bounds Read
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 30, 2026
- Updated
- Jul 31, 2026
- Reserved
- Jul 27, 2026
Description
The ACSE layer contains a flaw in the processing of AARQ PDUs during MMS connection establishment. When parsing certain fields within the calling AP title, an attacker controlled length value of zero or one may cause the parser to read past the end of a heap buffer.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | icscert |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | icscert |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libiec61850MZ Automation GmbH |
|
References
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