Linux Distros Unpatched Vulnerability : CVE-2026-73637

high Nessus Plugin ID 362622

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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.

- Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0.
Users are recommended to upgrade to version 2.4.69, which fixes this issue. (CVE-2026-73637)

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: 362622

File Name: unpatched_CVE_2026_73637.nasl

Version: 1.5

Type: Local

Agent: unix

Family: Misc.

Published: 10/2/2026

Updated: 10/17/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.22

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-2026-73637

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:apache2, p-cpe:/a:centos:centos:httpd-core, p-cpe:/a:centos:centos:httpd-devel, p-cpe:/a:centos:centos:httpd-filesystem, p-cpe:/a:centos:centos:httpd-manual, p-cpe:/a:centos:centos:httpd-tools, p-cpe:/a:centos:centos:httpd, p-cpe:/a:centos:centos:mod_http2, p-cpe:/a:centos:centos:mod_ldap, p-cpe:/a:centos:centos:mod_lua, p-cpe:/a:centos:centos:mod_md, p-cpe:/a:centos:centos:mod_proxy_html, p-cpe:/a:centos:centos:mod_session, p-cpe:/a:centos:centos:mod_ssl, p-cpe:/a:debian:debian_linux:apache2, p-cpe:/a:redhat:enterprise_linux:httpd-core, p-cpe:/a:redhat:enterprise_linux:httpd-devel, p-cpe:/a:redhat:enterprise_linux:httpd-filesystem, p-cpe:/a:redhat:enterprise_linux:httpd-manual, p-cpe:/a:redhat:enterprise_linux:httpd-tools, p-cpe:/a:redhat:enterprise_linux:httpd, p-cpe:/a:redhat:enterprise_linux:mod_http2, p-cpe:/a:redhat:enterprise_linux:mod_ldap, p-cpe:/a:redhat:enterprise_linux:mod_lua, p-cpe:/a:redhat:enterprise_linux:mod_md, p-cpe:/a:redhat:enterprise_linux:mod_proxy_html, p-cpe:/a:redhat:enterprise_linux:mod_session, p-cpe:/a:redhat:enterprise_linux:mod_ssl

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: 10/1/2026

Reference Information

CVE: CVE-2026-73637

Detections

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