Vulnerability DatabaseCVE-2026-67857
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CVE-2026-67857
Published:August 04, 2026
Updated:August 05, 2026
open62541 1.5.5 contains an out-of-bounds read in the client-side function responseReadNamespacesArray() in src/client/ua_client_connect.c.
Related Resources (5)
https://github.com/open62541/open62541/blob/v1.5.5/examples/client_connect.c
https://github.com/open62541/open62541/issues/8104
https://github.com/open62541/open62541/blob/v1.5.5/examples/client_connect_loop.c
https://github.com/gff-cw/information/issues/9
https://github.com/open62541/open62541/blob/v1.5.5/src/client/ua_client_connect.c
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Complexity
LOW
Attack Vector
NETWORK
Availability
HIGH
Confidentiality
NONE
Integrity
NONE
Privileges Required
NONE
Scope
UNCHANGED
User Interaction
NONE
Weakness Type (CWE)
Out-of-bounds Read
CWE-125