{"cve":"CVE-2009-1252","nvd":{"published":"2009-05-19T19:30:00.670","modified":"2026-06-16T23:06:51.997","status":"Modified","description":"Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-006.txt.asc","http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html","http://rhn.redhat.com/errata/RHSA-2009-1039.html","http://rhn.redhat.com/errata/RHSA-2009-1040.html","http://secunia.com/advisories/35137"],"products":["ntp:ntp"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1252","score":0.21286,"percentile":0.97598,"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."]}