Buffer overflow in N/a

CVE-2026-67868

A heap-based out-of-bounds write vulnerability exists in S2OPC 1.7.3 in server-side EventFilter handling during CreateMonitoredItems processing. This allows a remote attacker to execute arbitrary code.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-67868: held from 0.006 to 0.011.

EPSS over last 30 days · oldest: 0.006 · newest: 0.011 · change: +0.005

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-67868?
CVE-2026-67868 is a critical-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-08-17.
How severe is CVE-2026-67868?
Critical severity. CVSS v3 base score is 9.8 out of 10.