Vulnerability · Published Sep 25, 2026 · Assigned by php
CVE-2025-1218Various packet overreads in mysqlnd_writeprotocol.c
Low 3.4
In plain English
A low-severity heap buffer overflow in PHP from PHP Group. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.4Low
Exploit odds (30 days)0.3%top 79.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | apcu-panel | 5.1.18-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | libzip | 1.6.1-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | libzip | 1.6.1-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | libzip | 1.6.1-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | libzip-devel | 1.6.1-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | libzip-devel | 1.6.1-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | libzip-devel | 1.6.1-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | libzip-tools | 1.6.1-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | libzip-tools | 1.6.1-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | php | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-bcmath | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-cli | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-common | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-dba | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-dbg | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-devel | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-embedded | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-enchant | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-ffi | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-fpm | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-gd | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-gmp | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-intl | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-json | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-ldap | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-mbstring | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-mysqlnd | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-odbc | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-opcache | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pdo | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pear | 1:1.10.13-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-apcu | 5.1.18-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-apcu | 5.1.18-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-apcu-devel | 5.1.18-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-apcu-devel | 5.1.18-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-xdebug | 2.9.5-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-xdebug | 2.9.5-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-zip | 1.18.2-1.module_el8.6.0+2750+78feabcb | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-zip | 1.18.2-1.module_el8.10.0+3935+28808425 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pecl-zip | 1.18.2-1.module_el8.6.0+3239+bedf0508 | ALSA-2026:87080 |
| AlmaLinux:8 | php-pgsql | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-process | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-snmp | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-soap | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-xml | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| AlmaLinux:8 | php-xmlrpc | 7.4.33-8.module_el8.10.0+4321+cf5fd4bb | ALSA-2026:87080 |
| Alpine:v3.22 | php82 | 8.2.35-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.22 | php83 | 8.3.36-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.23 | php83 | 8.3.36-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.24 | php83 | 8.3.35-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.22 | php84 | 8.4.27-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.23 | php84 | 8.4.27-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.24 | php84 | 8.4.26-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.23 | php85 | 8.5.12-r0 | ALPINE-CVE-2025-1218 |
| Alpine:v3.24 | php85 | 8.5.11-r0 | ALPINE-CVE-2025-1218 |
| Debian:12 | php8.2 | 8.2.34-1~deb12u1 | DEBIAN-CVE-2025-1218 |
| Debian:13 | php8.4 | 8.4.26-1~deb13u1 | DEBIAN-CVE-2025-1218 |
| Debian:14 | php8.4 | 8.4.26-1 | DEBIAN-CVE-2025-1218 |
| Rocky Linux:8 | libzip | 0:1.6.1-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | libzip | 0:1.6.1-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Rocky Linux:8 | php | 0:7.4.33-8.module+el8.10.0+40393+c071e357 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pear | 1:1.10.13-1.module+el8.10.0+1605+02e07af7 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pear | 1:1.10.13-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pear | 1:1.10.13-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-apcu | 0:5.1.18-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-apcu | 0:5.1.18-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-rrd | 0:2.0.1-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-rrd | 0:2.0.1-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-rrd | 0:2.0.1-1.module+el8.4.0+414+2e7afcdd | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-xdebug | 0:2.9.5-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-xdebug | 0:2.9.5-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-zip | 0:1.18.2-1.module+el8.10.0+1912+72767185 | RLSA-2026:87080 |
| Rocky Linux:8 | php-pecl-zip | 0:1.18.2-1.module+el8.10.0+1604+6558efc7 | RLSA-2026:87080 |
| Ubuntu:22.04:LTS | php8.1 | 8.1.2-1ubuntu2.27 | UBUNTU-CVE-2025-1218 |
| Ubuntu:22.04:LTS | php8.1 | 8.1.2-1ubuntu2.27 | USN-8936-1 |
| Ubuntu:24.04:LTS | php8.3 | 8.3.6-0ubuntu0.24.04.12 | UBUNTU-CVE-2025-1218 |
| Ubuntu:24.04:LTS | php8.3 | 8.3.6-0ubuntu0.24.04.12 | USN-8936-1 |
| Ubuntu:26.04:LTS | php8.5 | 8.5.4-0ubuntu1.4 | UBUNTU-CVE-2025-1218 |
| Ubuntu:26.04:LTS | php8.5 | 8.5.4-0ubuntu1.4 | USN-8936-1 |
| Ubuntu:26.10 | php8.5 | 8.5.9-0ubuntu2 | UBUNTU-CVE-2025-1218 |
| Ubuntu:26.10 | php8.5 | 8.5.9-0ubuntu2 | USN-8936-1 |
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N