{"cve":"CVE-2017-11104","nvd":{"published":"2017-07-08T10:29:00.170","modified":"2026-06-17T01:01:13.540","status":"Modified","description":"Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-20"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html","http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html","http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html","http://www.debian.org/security/2017/dsa-3910"],"products":["debian:debian_linux","knot-dns:knot_dns"],"source":"nvd","synced_at":"2026-10-19T20:43:44.556243339+00:00"},"epss":{"cve":"CVE-2017-11104","score":0.02681,"percentile":0.85824,"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."]}