CVE-2026-61893CWE-125

CVE-2026-61893

Medium · published July 31, 2026

CVSS v3.1

6.5

EPSS

0%

Percentile

38.7

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 6.5 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS v4.0: Not supplied
EPSS: 0.00458 · 38.7th percentile
Weakness: CWE-125 · Out-of-bounds Read
Published: 2026-07-31T03:16Z

References (4)

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-11.json · [email protected]https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11 · [email protected]https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

30 JUL 22:58Z
MZ Automation lib60870 Out-of-bounds Read
cvelistv5