Buffer Overflow Vulnerability in open62541 Affected by Remote Attack
CVE-2026-67862

7.5HIGH

Key Information:

Vendor

open62541

Status
open62541
Vendor
CVE Published:
4 August 2026

What is CVE-2026-67862?

The open62541 library version 1.5.5 has a buffer overflow issue within its high-level attribute reading logic. This vulnerability may allow a remote attacker to exploit the flaw, potentially resulting in a denial of service condition that disrupts the operation of the application. It is crucial for users to remain vigilant and apply any necessary patches to protect against this threat.

References

https://github.com/open62541/open62541/issues/8139
https://github.com/open62541/open62541/blob/v1.5.5/src/cl...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.