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 ?
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| o6 Automation GmbH | Open62541 |
Affected:
1.5-rc1 , < 1.5-rc2
(custom)
|
Credits
Andrew Fasano of NIST CAISI reported this vulnerability to CISA.
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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