{"id":"CVE-2026-17544","summary":"Out-of-bounds write in bccomp() via crafted operand and scale","details":"Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.","aliases":["BIT-libphp-2026-17544","BIT-php-2026-17544","BIT-php-min-2026-17544","GHSA-x692-q9x7-8c3f"],"modified":"2026-11-11T02:55:54.291156189Z","published":"2026-07-30T11:22:24.023Z","related":["ALSA-2026:56969","SUSE-SU-2026:23121-1","SUSE-SU-2026:23144-1","SUSE-SU-2026:3509-1","openSUSE-SU-2026:11418-1","openSUSE-SU-2026:21532-1"],"database_specific":{"cna_assigner":"php","cwe_ids":["CWE-787"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17544.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17544.json"},{"type":"ADVISORY","url":"https://github.com/php/php-src/security/advisories/GHSA-x692-q9x7-8c3f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17544"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/php/php-src","events":[{"introduced":"b437f2b32eb364c9496d24abcc734272e5c9c980"},{"fixed":"fb193d3df72d1ca3b5ef58ec9e9b6ef5bdf18bef"},{"introduced":"685e99655ae97c667950f7f7d176985958718f56"},{"fixed":"dd6e76cce27aaa0ed9f7520648ed1081dfb6af36"}],"database_specific":{"extracted_events":[{"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*","range":[{"introduced":"8.4.0"},{"fixed":"8.4.24"}]},{"range":[{"introduced":"8.5.0"},{"fixed":"8.5.9"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-17544.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N"}]}