High severity7.5NVD Advisory· Published Jul 30, 2026
o6 Automation open62541
CVE-2026-63559
Description
An integer overflow in the UA_Variant arrayDimensions product computation in open62541 may allow a remote attacker to read out-of-bounds heap memory, potentially disclosing sensitive information.
Affected products
2Patches
Vulnerability mechanics
News mentions
1- o6 Automation open62541CISA ICS Advisories