CVE-2021-27432

HIGH

OPC Foundation UA <1.4.365.48 - Buffer Overflow

Title source: llm
STIX 2.1

Description

OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

References (1)

Core 1
Core References
Third Party Advisory, US Government Resource x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03

Scores

CVSS v3 7.5
EPSS 0.0219
EPSS Percentile 80.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-674
Status published
Products (2)
opcfoundation/ua-.net-legacy
opcfoundation/ua_.net_standard_stack < 1.4.365.48
Published May 20, 2021
Tracked Since Feb 18, 2026