{"cve":"CVE-2009-1956","nvd":{"published":"2009-06-08T01:00:00.703","modified":"2026-06-16T23:08:26.327","status":"Modified","description":"Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html","http://marc.info/?l=bugtraq&m=129190899612998&w=2","http://secunia.com/advisories/34724","http://secunia.com/advisories/35284","http://secunia.com/advisories/35395"],"products":["apache:apr-util","apache:http_server","canonical:ubuntu_linux"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1956","score":0.12042,"percentile":0.96139,"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."]}