What is CVE-2026-67860?

CVE-2026-67860 is a high-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-08-04.

How severe is CVE-2026-67860?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in N/a

CVE-2026-67860

open62541 1.5.5 contains a heap-based buffer overflow in the default HistoryRead path when the default history database is used with the memory backend.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-67860?: CVE-2026-67860 is a high-severity vulnerability in N/a, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-08-04.
How severe is CVE-2026-67860?: High severity. CVSS v3 base score is 7.5 out of 10.