{"cve":"CVE-2009-4212","nvd":{"published":"2010-01-13T19:30:00.607","modified":"2026-06-16T23:13:15.220","status":"Modified","description":"Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html","http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033915.html","http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033919.html","http://marc.info/?l=bugtraq&m=130497213107107&w=2","http://secunia.com/advisories/38080"],"products":["mit:kerberos","mit:kerberos_5"],"source":"nvd","synced_at":"2026-10-19T19:55:32.599380760+00:00"},"epss":{"cve":"CVE-2009-4212","score":0.07553,"percentile":0.9452,"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."]}