{"cve":"CVE-2007-4661","nvd":{"published":"2007-09-04T22:17:00.000","modified":"2026-06-16T22:44:31.933","status":"Modified","description":"The chunk_split function in string.c in PHP 5.2.3 does not properly calculate the needed buffer size due to precision loss when performing integer arithmetic with floating point numbers, which has unknown attack vectors and impact, possibly resulting in a heap-based buffer overflow.  NOTE: this is due to an incomplete fix for CVE-2007-2872.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119","CWE-399"],"references":["http://cvs.php.net/viewvc.cgi/php-src/ext/standard/string.c?r1=1.445.2.14.2.58&r2=1.445.2.14.2.59","http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html","http://secunia.com/advisories/26642","http://secunia.com/advisories/26838","http://secunia.com/advisories/27102"],"products":["php:php"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-4661","score":0.02358,"percentile":0.83765,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}