SEPTEMBER 20, 2026
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Case File

CVE-2026-63559

HIGH · CVSS 7.5 EPSS 0.43% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-30 · Last synced 2026-08-29

CyberRota Analysis

AI-Generated

An integer overflow vulnerability in the UA_Variant arrayDimensions computation of open62541 can be exploited by remote attackers to access out-of-bounds heap memory, leading to potential exposure of sensitive information. Organizations utilizing open62541 should prioritize patching this vulnerability to mitigate the risk of data leaks. Given its high severity, immediate attention is recommended for environments handling sensitive data.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-63559
Severity
HIGH
CVSS
7.5
EPSS
0.43%

Original NVD 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.