by Kastro
Paper/Archive/CVE-2026-49035

CVE-2026-49035

MZ Automation libIEC61850 — Stack-based Buffer Overflow in MZ Automation libIEC61850

EPSS 0.6%CVSS 9.2
critical.is priorityof 100
38
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 49.4.494 × 209.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.

Affected

ProductAffectedFixed inSource
libIEC618501.0.0 – 1.6.1–CNA

Scores by source

icscert (CNA)9.2CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
icscert (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refcisa.gov/news-events/ics-advisories/icsa-26-204-06