{"cve":"CVE-2021-36222","nvd":{"published":"2021-07-22T18:15:23.337","modified":"2026-10-14T12:17:14.713","status":"Modified","description":"ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-476"],"references":["https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562","https://github.com/krb5/krb5/releases","https://security.netapp.com/advisory/ntap-20211022-0003/","https://security.netapp.com/advisory/ntap-20211104-0007/","https://web.mit.edu/kerberos/advisories/"],"products":["debian:debian_linux","mit:kerberos_5","netapp:active_iq_unified_manager","netapp:oncommand_insight","netapp:oncommand_workflow_automation","netapp:snapcenter","oracle:mysql_server"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-36222","score":0.10509,"percentile":0.9573,"date":"2026-10-25"},"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."]}