Description
The MMS BER decoder contains a flaw in decoding fixed-width BER fields
(boolean/integer): an attacker-supplied length value is not validated,
causing a read past the end of a heap buffer. This leads to termination
of the MMS service process and a denial-of-service condition.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MZ Automation | libiec61850 | < 1.6.2 | 1.6.2 |
Advisories 1
- ICSA-26-211-10 MZ Automation GmbH libiec61850 CISA ICS & IT advisories · Jul 30, 2026