o6 Automation GmbH Open62541
0 remedies
cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*
0 remedies
- >= 1.5-rc1, < 1.5-rc2
o6 Automation GmbH Open62541 PubSub and JSON Enabled Out-of-Bounds Write Vulnerability
Vulnerability
A vulnerability exists in o6 Automation GmbH Open62541 versions 1.5-rc1 prior to 1.5-rc2, when PubSub and JSON are enabled. A crafted JSON message can lead to an out-of-bounds write, causing the decoder to overwrite memory beyond a heap-allocated array. This issue occurs before authentication, consistently crashing the process and corrupting memory.
Impact
Exploitation of this vulnerability leads to a denial-of-service condition and memory corruption.
Added: Feb 5, 2026, 7:23 PM
Updated: Feb 5, 2026, 8:50 PM
Vulnerability Rating
Custom Algorithm
spread
2.6impact
2.5exploitability
7.0remediation
0.0relevance
2.5threat
0.0urgency
2.9incentive
4.2Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.