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CVE-2026-61893
Description
A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an inflated object count causes TestCommand_getFromBuffer to read one byte past the end of the heap-allocated message buffer.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LReferences
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-11.json
- https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11
- https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm