Linux Distros Unpatched Vulnerability : CVE-2026-9150

high Nessus Plugin ID 316397

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory corruption and a denial of service (DoS) in the affected system. (CVE-2026-9150)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 316397

File Name: unpatched_CVE_2026_9150.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 5/22/2026

Updated: 5/22/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-9150

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:libsolv, p-cpe:/a:centos:centos:libsolv-demo, p-cpe:/a:centos:centos:libsolv-devel, p-cpe:/a:centos:centos:libsolv-tools, p-cpe:/a:centos:centos:python2-solv, p-cpe:/a:redhat:enterprise_linux:libsolv, p-cpe:/a:redhat:enterprise_linux:libsolv-demo, p-cpe:/a:redhat:enterprise_linux:libsolv-devel, p-cpe:/a:redhat:enterprise_linux:libsolv-tools, p-cpe:/a:redhat:enterprise_linux:python2-solv, p-cpe:/a:redhat:enterprise_linux:python3-solv, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:python3-solv, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:redhat:enterprise_linux:9, cpe:/o:debian:debian_linux:12.0, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:canonical:ubuntu_linux:libsolv, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:centos:centos:libsolv-tools-base, p-cpe:/a:redhat:enterprise_linux:libsolv-tools-base, p-cpe:/a:debian:debian_linux:libsolv

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-9150

Detections

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