In libIEC61850 1.4.0, MmsValue_newOctetString in mms/iso_mms/common/mms_value.c has an integer signedness error that can lead to an attempted excessive memory allocation.
Severity
CVSS 3.1
6.5 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)