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Linux Distros Unpatched Vulnerability : CVE-2025-66286

high Nessus Plugin ID 309979

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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.

 - An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject all network requests. However, certain types of HTTP requests bypass this signal handler. (CVE-2025-66286)

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-2025-66286

https://ubuntu.com/security/CVE-2025-66286

Plugin Details

Severity: High

ID: 309979

File Name: unpatched_CVE_2025_66286.nasl

Version: 1.7

Type: Local

Agent: unix

Family: Misc.

Published: 4/23/2026

Updated: 5/21/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.4

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

CVSS Score Source: CVE-2025-66286

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:wpewebkit, p-cpe:/a:redhat:enterprise_linux:webkitgtk4-jsc-devel, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:webkit2gtk, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:webkitgtk, p-cpe:/a:redhat:enterprise_linux:webkitgtk4-jsc, p-cpe:/a:centos:centos:webkitgtk4, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:webkitgtk4-doc, p-cpe:/a:centos:centos:webkitgtk3, p-cpe:/a:centos:centos:webkitgtk4-jsc-devel, p-cpe:/a:redhat:enterprise_linux:webkitgtk3-devel, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:webkit2gtk3-jsc-devel, p-cpe:/a:redhat:enterprise_linux:webkitgtk4-plugin-process-gtk2, p-cpe:/a:redhat:enterprise_linux:webkitgtk4-devel, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3, p-cpe:/a:centos:centos:webkit2gtk3-jsc, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:libwebkit2gtk, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:webkitgtk4, p-cpe:/a:canonical:ubuntu_linux:qtwebkit-source, p-cpe:/a:centos:centos:webkit2gtk3, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-plugin-process-gtk2, p-cpe:/a:canonical:ubuntu_linux:qtwebkit-opensource-src, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-jsc-devel, p-cpe:/a:centos:centos:webkitgtk3-doc, p-cpe:/a:redhat:enterprise_linux:webkitgtk3, p-cpe:/a:centos:centos:webkit2gtk3-devel, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:webkitgtk3-doc, p-cpe:/a:redhat:enterprise_linux:webkitgtk4-doc, p-cpe:/a:centos:centos:webkitgtk4-devel, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-jsc, p-cpe:/a:centos:centos:webkit2gtk3-plugin-process-gtk2, p-cpe:/a:centos:centos:webkitgtk3-devel, p-cpe:/a:centos:centos:webkitgtk4-plugin-process-gtk2, p-cpe:/a:redhat:enterprise_linux:libwebkit2gtk, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-devel, p-cpe:/a:centos:centos:webkitgtk4-jsc

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: 4/23/2026

Reference Information

CVE: CVE-2025-66286