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2 vulnerabilities found for Open62541 by o6 Automation GmbH

CVE-2026-1301 (GCVE-0-2026-1301)

Vulnerability from nvd – Published: 2026-02-05 19:09 – Updated: 2026-02-05 20:23
VLAI?
Title
Out-of-bounds Write in o6 Automation GmbH Open62541
Summary
In builds with PubSub and JSON enabled, a crafted JSON message can cause the decoder to write beyond a heap-allocated array before authentication, reliably crashing the process and corrupting memory.
Severity ?
6.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
o6 Automation GmbH Open62541 Affected: 1.5-rc1 , < 1.5-rc2 (custom)
Create a notification for this product.
Credits
Andrew Fasano of NIST CAISI reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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CVE-2026-1301 (GCVE-0-2026-1301)

Vulnerability from cvelistv5 – Published: 2026-02-05 19:09 – Updated: 2026-02-05 20:23
VLAI?
Title
Out-of-bounds Write in o6 Automation GmbH Open62541
Summary
In builds with PubSub and JSON enabled, a crafted JSON message can cause the decoder to write beyond a heap-allocated array before authentication, reliably crashing the process and corrupting memory.
Severity ?
6.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
o6 Automation GmbH Open62541 Affected: 1.5-rc1 , < 1.5-rc2 (custom)
Create a notification for this product.
Credits
Andrew Fasano of NIST CAISI reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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