CVE-2026-67857: n/a
open62541 version 1.5.5 contains a high-severity out-of-bounds read vulnerability in the client-side function responseReadNamespacesArray() located in src/client/ua_client_connect.c. This flaw could potentially lead to application crashes or other unintended behavior due to reading memory outside the intended bounds.
AI Analysis
Technical Summary
CVE-2026-67857 identifies an out-of-bounds read vulnerability in open62541 version 1.5.5, specifically within the client-side function responseReadNamespacesArray() in the source file src/client/ua_client_connect.c. The vulnerability is classified with a CVSS 3.1 base score of 7.5, indicating high severity. The attack vector is network-based with low attack complexity, requiring no privileges or user interaction. The impact is limited to availability, with no confidentiality or integrity impact reported. No official patch or remediation information is currently available.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication to cause an out-of-bounds read, which may result in application crashes or denial of service. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should monitor official open62541 communications for updates. No specific mitigations are provided in the current data.
CVE-2026-67857: n/a
Description
open62541 version 1.5.5 contains a high-severity out-of-bounds read vulnerability in the client-side function responseReadNamespacesArray() located in src/client/ua_client_connect.c. This flaw could potentially lead to application crashes or other unintended behavior due to reading memory outside the intended bounds.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/open62541/open62541Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67857 identifies an out-of-bounds read vulnerability in open62541 version 1.5.5, specifically within the client-side function responseReadNamespacesArray() in the source file src/client/ua_client_connect.c. The vulnerability is classified with a CVSS 3.1 base score of 7.5, indicating high severity. The attack vector is network-based with low attack complexity, requiring no privileges or user interaction. The impact is limited to availability, with no confidentiality or integrity impact reported. No official patch or remediation information is currently available.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication to cause an out-of-bounds read, which may result in application crashes or denial of service. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should monitor official open62541 communications for updates. No specific mitigations are provided in the current data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-07-30T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a725cbabf8831d5398274db
Added to database: 08/04/2026, 21:42:18 UTC
Last enriched: 08/04/2026, 21:56:33 UTC
Last updated: 08/04/2026, 23:52:58 UTC
Views: 4
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