UBUNTU-CVE-2026-18785

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Source

https://ubuntu.com/security/CVE-2026-18785

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18785.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-18785

Upstream

CVE-2026-18785

Published

2026-08-04T17:16:00Z

Modified

2026-08-06T03:08:40.478923017Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UAClientgetRemoteDataTypes of the file examples/customdatatype/clienttypes_custom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

References

Affected packages

Ubuntu:26.04:LTS / open62541

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.11.1-1

1.4.11.1-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.4.11.1-1build1",
            "binary_name": "libopen62541-1.4"
        },
        {
            "binary_version": "1.4.11.1-1build1",
            "binary_name": "libopen62541-1.4-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18785.json"