UBUNTU-CVE-2026-54161

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Source

https://ubuntu.com/security/CVE-2026-54161

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54161.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-54161

Upstream

CVE-2026-54161

Published

2026-07-06T00:00:00Z

Modified

2026-07-11T00:15:09Z

Severity

Ubuntu - medium

Summary

[none]

Details

upsmon: remote OS command injection (RCE) via attacker-controlled ups.alarm in NOTIFYCMD execution

References

Affected packages

Ubuntu:25.10 / nut

Package

Name: nut
Purl: pkg:deb/ubuntu/nut?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.8.1-4ubuntu1

2.8.3-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libnutclient2t64",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "libnutscan3",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "libups-nut-perl",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "libupsclient7",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-cgi",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-client",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-i2c",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-ipmi",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-modbus",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-monitor",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-powerman-pdu",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-server",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-snmp",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "nut-xml",
            "binary_version": "2.8.3-2"
        },
        {
            "binary_name": "python3-nut",
            "binary_version": "2.8.3-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54161.json"

Ubuntu:26.04:LTS / nut