Description (CNA)
The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its internal buffer incorrectly due to a missing bounds check. This results in a one byte heap out-of-bounds read and causes the MMS service process to terminate, leading to a denial-of-service condition.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| MZ Automation GmbH / libiec61850 | affected 0 before 1.6.2; unaffected 1.6.2 |
CWE
CWE-125
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-10
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-10.json
ADP enrichment
No English description supplied.
No references supplied.