UBUNTU-CVE-2026-116014

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Source

https://ubuntu.com/security/CVE-2026-116014

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116014.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-116014

Upstream

CVE-2026-116014

Published

2026-10-26T00:00:00Z

Modified

2026-10-27T04:16:52Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription() that wraps the 16-bit memSize field for large custom structure definitions. A malicious OPC UA server can supply DataType definitions via UA_Client_getRemoteDataTypes(), causing decodeBinaryStructure() to overflow the heap, crashing clients or enabling code execution.

References

Affected packages

Ubuntu:26.10 / open62541

Package

Name: open62541
Purl: pkg:deb/ubuntu/open62541?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.11.1-1build1

1.4.18-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libopen62541-1.4",
            "binary_version":  "1.4.18-1"
        },
        {
            "binary_name":  "libopen62541-1.4-tools",
            "binary_version":  "1.4.18-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116014.json"

Ubuntu:26.04:LTS / open62541