{"cve":"CVE-2015-3206","nvd":{"published":"2017-08-25T18:29:00.637","modified":"2026-06-17T00:25:32.260","status":"Modified","description":"The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-287"],"references":["http://www.openwall.com/lists/oss-security/2015/05/21/3","http://www.securityfocus.com/bid/74760","https://bugzilla.redhat.com/show_bug.cgi?id=1223802","https://github.com/apple/ccs-pykerberos/issues/31","https://pypi.python.org/pypi/kerberos"],"products":["apple:pykerberos"],"source":"nvd","synced_at":"2026-10-19T20:44:47.710380879+00:00"},"epss":{"cve":"CVE-2015-3206","score":0.0239,"percentile":0.83968,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-mffc-9gx5-99g3","url":"https://osv.dev/vulnerability/GHSA-mffc-9gx5-99g3","summary":"python-kerberos vulnerable to KDC spoofing attacks","modified":"2024-09-27T16:13:38.329787Z","packages":[{"ecosystem":"PyPI","name":"kerberos","purl":"pkg:pypi/kerberos","ranges":["<=1.2.5"],"fixed":[]},{"ecosystem":"PyPI","name":"pykerberos","purl":"pkg:pypi/pykerberos","ranges":["<1.1.6"],"fixed":["1.1.6"]}]},{"id":"PYSEC-2017-49","url":"https://osv.dev/vulnerability/PYSEC-2017-49","summary":"","modified":"2024-02-23T21:13:18.674606Z","packages":[{"ecosystem":"PyPI","name":"kerberos","purl":"pkg:pypi/kerberos","ranges":[">=0.0"],"fixed":[]}]},{"id":"PYSEC-2017-66","url":"https://osv.dev/vulnerability/PYSEC-2017-66","summary":"","modified":"2026-06-10T17:01:40.747674771Z","packages":[{"ecosystem":"PyPI","name":"pykerberos","purl":"pkg:pypi/pykerberos","ranges":["<1.1.6"],"fixed":["1.1.6"]}]}],"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."]}