Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-9149

high Nessus Plugin ID 316421

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 heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS). (CVE-2026-9149)

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

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-9149

Plugin Details

Severity: High

ID: 316421

File Name: unpatched_CVE_2026_9149.nasl

Version: 1.1

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: 6.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-9149

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:libsolv-tools, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:libsolv-tools-base, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:libsolv, p-cpe:/a:redhat:enterprise_linux:libsolv-devel, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:python2-solv, p-cpe:/a:redhat:enterprise_linux:libsolv-demo, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:libsolv-tools-base, p-cpe:/a:centos:centos:python2-solv, p-cpe:/a:redhat:enterprise_linux:libsolv, p-cpe:/a:centos:centos:python3-solv, p-cpe:/a:redhat:enterprise_linux:python3-solv, p-cpe:/a:centos:centos:libsolv-devel, p-cpe:/a:redhat:enterprise_linux:libsolv-tools, p-cpe:/a:centos:centos:libsolv-demo

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-2026-9149