CVE-2026-1301 (GCVE-0-2026-1301)
Vulnerability from cvelistv5 – Published: 2026-02-05 19:09 – Updated: 2026-02-05 20:23
VLAI
EPSS
VEX
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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-05 20:22 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
icscert
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/news-events/ics-advisories/i… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| o6 Automation GmbH | Open62541 |
Affected:
1.5-rc1 , < 1.5-rc2
(custom)
|
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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