Unrated severityOSV Advisory· Published Dec 27, 2025· Updated Jan 24, 2026
Heap buffer overflow in array_merge()
CVE-2025-14178
Description
In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, a heap buffer overflow occurs in array_merge() when the total element count of packed arrays exceeds 32-bit limits or HT_MAX_SIZE, due to an integer overflow in the precomputation of element counts using zend_hash_num_elements(). This may lead to memory corruption or crashes and affect the integrity and availability of the target server.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
119- osv-coords117 versionspkg:bitnami/libphppkg:bitnami/phppkg:bitnami/php-minpkg:rpm/almalinux/apcu-panelpkg:rpm/almalinux/libzippkg:rpm/almalinux/libzip-develpkg:rpm/almalinux/libzip-toolspkg:rpm/almalinux/phppkg:rpm/almalinux/php-bcmathpkg:rpm/almalinux/php-clipkg:rpm/almalinux/php-commonpkg:rpm/almalinux/php-dbapkg:rpm/almalinux/php-dbgpkg:rpm/almalinux/php-develpkg:rpm/almalinux/php-embeddedpkg:rpm/almalinux/php-enchantpkg:rpm/almalinux/php-ffipkg:rpm/almalinux/php-fpmpkg:rpm/almalinux/php-gdpkg:rpm/almalinux/php-gmppkg:rpm/almalinux/php-intlpkg:rpm/almalinux/php-jsonpkg:rpm/almalinux/php-ldappkg:rpm/almalinux/php-mbstringpkg:rpm/almalinux/php-mysqlndpkg:rpm/almalinux/php-odbcpkg:rpm/almalinux/php-opcachepkg:rpm/almalinux/php-pdopkg:rpm/almalinux/php-pearpkg:rpm/almalinux/php-pecl-apcupkg:rpm/almalinux/php-pecl-apcu-develpkg:rpm/almalinux/php-pecl-redis6pkg:rpm/almalinux/php-pecl-rrdpkg:rpm/almalinux/php-pecl-xdebugpkg:rpm/almalinux/php-pecl-xdebug3pkg:rpm/almalinux/php-pecl-zippkg:rpm/almalinux/php-pgsqlpkg:rpm/almalinux/php-processpkg:rpm/almalinux/php-snmppkg:rpm/almalinux/php-soappkg:rpm/almalinux/php-xmlpkg:rpm/almalinux/php-xmlrpcpkg:rpm/opensuse/apache2-mod_php7&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/apache2-mod_php8&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/apache2-mod_php8&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/php7&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php7-embed&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php7-fastcgi&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php7-fpm&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php7-test&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/php8&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/php8-embed&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8-embed&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/php8-fastcgi&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8-fastcgi&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/php8-fpm&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8-fpm&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/php8-test&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/php8-test&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/apache2-mod_php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/apache2-mod_php8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/apache2-mod_php8&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/apache2-mod_php8&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/php7-embed&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/php7-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/php7-fpm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/php7-test&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/php8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/php8&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/php8&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/php8-embed&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/php8-embed&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/php8-embed&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/php8-fastcgi&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/php8-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/php8-fastcgi&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/php8-fpm&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7pkg:rpm/suse/php8-fpm&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/php8-fpm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/php8-test&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP7
< 8.1.34+ 116 more
- (no CPE)range: < 8.1.34
- (no CPE)range: < 8.1.34
- (no CPE)range: < 8.1.34
- (no CPE)range: < 5.1.23-1.module_el9.4.0+65+49ff6472
- (no CPE)range: < 1.7.3-1.module_el8.10.0+3796+30ed3ef7
- (no CPE)range: < 1.7.3-1.module_el8.10.0+3796+30ed3ef7
- (no CPE)range: < 1.7.3-1.module_el8.10.0+3796+30ed3ef7
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 7.4.33-3.module_el8.10.0+4114+3b36c618
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 1:1.10.14-1.module_el8.10.0+3796+30ed3ef7
- (no CPE)range: < 5.1.23-1.module_el9.4.0+65+49ff6472
- (no CPE)range: < 5.1.23-1.module_el9.4.0+65+49ff6472
- (no CPE)range: < 6.1.0-2.module_el9.6.0+151+5f31e576
- (no CPE)range: < 2.0.3-4.module_el9.4.0+65+49ff6472
- (no CPE)range: < 2.9.5-1.module_el8.10.0+3935+28808425
- (no CPE)range: < 3.2.2-2.module_el9.4.0+65+49ff6472
- (no CPE)range: < 1.22.3-1.module_el9.4.0+65+49ff6472
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 8.2.30-1.module_el9.7.0+205+fe410f10
- (no CPE)range: < 7.4.33-3.module_el8.10.0+4114+3b36c618
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-1.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.2.30-150600.3.25.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 8.3.29-150700.3.9.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 7.4.33-150400.4.55.1
- (no CPE)range: < 8.3.29-150700.3.9.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.3.29-150700.3.9.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.3.29-150700.3.9.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.3.29-150700.3.9.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.4.16-160000.1.1
- (no CPE)range: < 8.3.29-150700.3.9.1
Patches
Vulnerability mechanics
References
1News mentions
0No linked articles in our index yet.