{"cve":"CVE-2015-2694","nvd":{"published":"2015-05-25T19:59:02.407","modified":"2026-06-17T00:24:34.020","status":"Modified","description":"The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://krbdev.mit.edu/rt/Ticket/Display.html?id=8160","http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html","http://www.securityfocus.com/bid/74824","http://www.ubuntu.com/usn/USN-2810-1","https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604"],"products":["mit:kerberos_5"],"source":"nvd","synced_at":"2026-10-19T20:36:40.444340523+00:00"},"epss":{"cve":"CVE-2015-2694","score":0.02832,"percentile":0.86626,"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."]}