CVE-2026-65423

Medium

Elevated severity or exploit probability.

CVSS base

8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — probability of exploitation (30 days)

0.8%

54.7th percentile

CISA KEV

Not listed

Weakness / dates

CWE-190

Published 2026-07-30 · modified 2026-09-03

Description

An integer overflow in the UA_Variant arrayDimensions product computation in open62541 may allow a remote attacker to trigger an out-of-bounds write.

Official: NVD · CVE.org