{"cve":"CVE-2007-4770","nvd":{"published":"2008-01-29T00:00:00.000","modified":"2026-06-16T22:44:45.403","status":"Modified","description":"libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \\0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html","http://rhn.redhat.com/errata/RHSA-2008-0090.html","http://secunia.com/advisories/28575","http://secunia.com/advisories/28615","http://secunia.com/advisories/28669"],"products":["icu-project:international_components_for_unicode"],"source":"nvd","synced_at":"2026-10-19T19:49:50.107194424+00:00"},"epss":{"cve":"CVE-2007-4770","score":0.02934,"percentile":0.87097,"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."]}