What is CVE-2026-63559?
An integer overflow vulnerability exists in the UA_Variant arrayDimensions product computation within the open62541 OPC UA library. A remote attacker could exploit this issue to perform an out-of-bounds read on heap memory, potentially leading to the disclosure of sensitive information. Upgrading to the latest version is recommended.
Azərbaycanca: open62541 OPC UA kitabxanasında UA_Variant arrayDimensions məhsul hesablanmasında tam ədəd daşması zəifliyi aşkarlanıb. Uzaqdan hücum edən şəxs bu zəiflik vasitəsilə heap yaddaşında sərhəddən kənar oxuma həyata keçirərək həssas məlumatları əldə edə bilər. Kitabxananı ən son versiyaya yeniləmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-190
FAQ2
In which component of the open62541 library was CVE-2026-63559 discovered?
The vulnerability originates from an integer overflow in the UA_Variant arrayDimensions product computation.
What can an attacker achieve by exploiting CVE-2026-63559?
A remote attacker could perform an out-of-bounds read on heap memory, potentially leading to the disclosure of sensitive information.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.