Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-15719
medium Nessus Plugin ID 327166
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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.- We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. (CVE-2026-15719)
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-2026-15719
Plugin Details
Severity: Medium
ID: 327166
File Name: unpatched_CVE_2026_15719.nasl
Version: 1.7
Type: Local
Agent: unix
Family: Misc.
Published: 7/16/2026
Updated: 8/4/2026
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.13
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2026-15719
CVSS v3
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:U/RC:C
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:debian:debian_linux:11.0, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:canonical:ubuntu_linux:mozjs102, p-cpe:/a:canonical:ubuntu_linux:mozjs115, p-cpe:/a:canonical:ubuntu_linux:mozjs38, p-cpe:/a:canonical:ubuntu_linux:mozjs52, p-cpe:/a:canonical:ubuntu_linux:mozjs68, p-cpe:/a:canonical:ubuntu_linux:mozjs78, p-cpe:/a:canonical:ubuntu_linux:mozjs91, p-cpe:/a:canonical:ubuntu_linux:thunderbird, p-cpe:/a:centos:centos:firefox, p-cpe:/a:debian:debian_linux:thunderbird, p-cpe:/a:redhat:enterprise_linux:firefox
Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 7/14/2026
Reference Information
CVE: CVE-2026-15719