Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-109618
critical Nessus Plugin ID 370006
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.- PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE). (CVE-2026-109618)
- A critical vulnerability has been discovered in PHP that will be addressed in a Critical PHP Security Release on October 21, 2026. Full details have not yet been shared, but public reporting from several trusted sources indicates this is one of the two CVEs that will be included in this release. When this flaw is chained with another PHP vulnerability, attackers could gain remote code execution. The chain has been dubbed php2shell by researchers at Calif. This description will be updated once PHP publishes full details. (CVE-2026-109618)
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-2026-109618
Plugin Details
Severity: Critical
ID: 370006
File Name: unpatched_CVE_2026_109618.nasl
Version: 1.2
Type: Local
Agent: unix
Family: Misc.
Published: 10/21/2026
Updated: 10/22/2026
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: Critical
Score: 9.4
Percentile: 99.83
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-109618
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.2
Threat Score: 7.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, 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:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:php5, p-cpe:/a:canonical:ubuntu_linux:php7.0, p-cpe:/a:canonical:ubuntu_linux:php7.2, p-cpe:/a:canonical:ubuntu_linux:php7.4, p-cpe:/a:canonical:ubuntu_linux:php8.1, p-cpe:/a:canonical:ubuntu_linux:php8.3, p-cpe:/a:canonical:ubuntu_linux:php8.5, p-cpe:/a:centos:centos:apcu-panel, p-cpe:/a:centos:centos:libzip-devel, p-cpe:/a:centos:centos:libzip-tools, p-cpe:/a:centos:centos:libzip, p-cpe:/a:centos:centos:php-bcmath, p-cpe:/a:centos:centos:php-cli, p-cpe:/a:centos:centos:php-common, p-cpe:/a:centos:centos:php-dba, p-cpe:/a:centos:centos:php-dbg, p-cpe:/a:centos:centos:php-devel, p-cpe:/a:centos:centos:php-embedded, p-cpe:/a:centos:centos:php-enchant, p-cpe:/a:centos:centos:php-ffi, p-cpe:/a:centos:centos:php-fpm, p-cpe:/a:centos:centos:php-gd, p-cpe:/a:centos:centos:php-gmp, p-cpe:/a:centos:centos:php-intl, p-cpe:/a:centos:centos:php-json, p-cpe:/a:centos:centos:php-ldap, p-cpe:/a:centos:centos:php-mbstring, p-cpe:/a:centos:centos:php-mysqlnd, p-cpe:/a:centos:centos:php-odbc, p-cpe:/a:centos:centos:php-opcache, p-cpe:/a:centos:centos:php-pdo, p-cpe:/a:centos:centos:php-pear, p-cpe:/a:centos:centos:php-pecl-apcu-devel, p-cpe:/a:centos:centos:php-pecl-apcu, p-cpe:/a:centos:centos:php-pecl-rrd, p-cpe:/a:centos:centos:php-pecl-xdebug3, p-cpe:/a:centos:centos:php-pecl-xdebug, p-cpe:/a:centos:centos:php-pecl-zip, p-cpe:/a:centos:centos:php-pgsql, p-cpe:/a:centos:centos:php-process, p-cpe:/a:centos:centos:php-recode, p-cpe:/a:centos:centos:php-snmp, p-cpe:/a:centos:centos:php-soap, p-cpe:/a:centos:centos:php-xml, p-cpe:/a:centos:centos:php-xmlrpc, p-cpe:/a:centos:centos:php8.4-bcmath, p-cpe:/a:centos:centos:php8.4-cli, p-cpe:/a:centos:centos:php8.4-common, p-cpe:/a:centos:centos:php8.4-dba, p-cpe:/a:centos:centos:php8.4-dbg, p-cpe:/a:centos:centos:php8.4-devel, p-cpe:/a:centos:centos:php8.4-embedded, p-cpe:/a:centos:centos:php8.4-enchant, p-cpe:/a:centos:centos:php8.4-ffi, p-cpe:/a:centos:centos:php8.4-fpm, p-cpe:/a:centos:centos:php8.4-gd, p-cpe:/a:centos:centos:php8.4-gmp, p-cpe:/a:centos:centos:php8.4-intl, p-cpe:/a:centos:centos:php8.4-ldap, p-cpe:/a:centos:centos:php8.4-mbstring, p-cpe:/a:centos:centos:php8.4-mysqlnd, p-cpe:/a:centos:centos:php8.4-odbc, p-cpe:/a:centos:centos:php8.4-opcache, p-cpe:/a:centos:centos:php8.4-pdo, p-cpe:/a:centos:centos:php8.4-pgsql, p-cpe:/a:centos:centos:php8.4-process, p-cpe:/a:centos:centos:php8.4-snmp, p-cpe:/a:centos:centos:php8.4-soap, p-cpe:/a:centos:centos:php8.4-xml, p-cpe:/a:centos:centos:php8.4, p-cpe:/a:centos:centos:php, p-cpe:/a:debian:debian_linux:php8.4, p-cpe:/a:redhat:enterprise_linux:apcu-panel, p-cpe:/a:redhat:enterprise_linux:libzip-devel, p-cpe:/a:redhat:enterprise_linux:libzip-tools, p-cpe:/a:redhat:enterprise_linux:libzip, p-cpe:/a:redhat:enterprise_linux:php-bcmath, p-cpe:/a:redhat:enterprise_linux:php-cli, p-cpe:/a:redhat:enterprise_linux:php-common, p-cpe:/a:redhat:enterprise_linux:php-dba, p-cpe:/a:redhat:enterprise_linux:php-dbg, p-cpe:/a:redhat:enterprise_linux:php-devel, p-cpe:/a:redhat:enterprise_linux:php-embedded, p-cpe:/a:redhat:enterprise_linux:php-enchant, p-cpe:/a:redhat:enterprise_linux:php-ffi, p-cpe:/a:redhat:enterprise_linux:php-fpm, p-cpe:/a:redhat:enterprise_linux:php-gd, p-cpe:/a:redhat:enterprise_linux:php-gmp, p-cpe:/a:redhat:enterprise_linux:php-intl, p-cpe:/a:redhat:enterprise_linux:php-json, p-cpe:/a:redhat:enterprise_linux:php-ldap, p-cpe:/a:redhat:enterprise_linux:php-mbstring, p-cpe:/a:redhat:enterprise_linux:php-mysqlnd, p-cpe:/a:redhat:enterprise_linux:php-odbc, p-cpe:/a:redhat:enterprise_linux:php-opcache, p-cpe:/a:redhat:enterprise_linux:php-pdo, p-cpe:/a:redhat:enterprise_linux:php-pear, p-cpe:/a:redhat:enterprise_linux:php-pecl-apcu-devel, p-cpe:/a:redhat:enterprise_linux:php-pecl-apcu, p-cpe:/a:redhat:enterprise_linux:php-pecl-rrd, p-cpe:/a:redhat:enterprise_linux:php-pecl-xdebug3, p-cpe:/a:redhat:enterprise_linux:php-pecl-xdebug, p-cpe:/a:redhat:enterprise_linux:php-pecl-zip, p-cpe:/a:redhat:enterprise_linux:php-pgsql, p-cpe:/a:redhat:enterprise_linux:php-process, p-cpe:/a:redhat:enterprise_linux:php-recode, p-cpe:/a:redhat:enterprise_linux:php-snmp, p-cpe:/a:redhat:enterprise_linux:php-soap, p-cpe:/a:redhat:enterprise_linux:php-xml, p-cpe:/a:redhat:enterprise_linux:php-xmlrpc, p-cpe:/a:redhat:enterprise_linux:php8.4-bcmath, p-cpe:/a:redhat:enterprise_linux:php8.4-cli, p-cpe:/a:redhat:enterprise_linux:php8.4-common, p-cpe:/a:redhat:enterprise_linux:php8.4-dba, p-cpe:/a:redhat:enterprise_linux:php8.4-dbg, p-cpe:/a:redhat:enterprise_linux:php8.4-devel, p-cpe:/a:redhat:enterprise_linux:php8.4-embedded, p-cpe:/a:redhat:enterprise_linux:php8.4-enchant, p-cpe:/a:redhat:enterprise_linux:php8.4-ffi, p-cpe:/a:redhat:enterprise_linux:php8.4-fpm, p-cpe:/a:redhat:enterprise_linux:php8.4-gd, p-cpe:/a:redhat:enterprise_linux:php8.4-gmp, p-cpe:/a:redhat:enterprise_linux:php8.4-intl, p-cpe:/a:redhat:enterprise_linux:php8.4-ldap, p-cpe:/a:redhat:enterprise_linux:php8.4-mbstring, p-cpe:/a:redhat:enterprise_linux:php8.4-mysqlnd, p-cpe:/a:redhat:enterprise_linux:php8.4-odbc, p-cpe:/a:redhat:enterprise_linux:php8.4-opcache, p-cpe:/a:redhat:enterprise_linux:php8.4-pdo, p-cpe:/a:redhat:enterprise_linux:php8.4-pgsql, p-cpe:/a:redhat:enterprise_linux:php8.4-process, p-cpe:/a:redhat:enterprise_linux:php8.4-snmp, p-cpe:/a:redhat:enterprise_linux:php8.4-soap, p-cpe:/a:redhat:enterprise_linux:php8.4-xml, p-cpe:/a:redhat:enterprise_linux:php8.4, p-cpe:/a:redhat:enterprise_linux:php
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: 10/21/2026
Reference Information
CVE: CVE-2026-109618