{"id":"CVE-2006-1721","aliases":["DEBIAN-CVE-2006-1721","DSA-1042-1","EUVD-2006-1721","GHSA-x5mm-w7g6-r6fq","RHSA-2007:0795","RHSA-2007:0878"],"status":"published","title":"digestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and...","description":"digestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and possibly other versions before 2.1.21, allows remote unauthenticated attackers to cause a denial of service (segmentation fault) via malformed inputs in DIGEST-MD5 negotiation.","severity":{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02488,"percentile":0.84744,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2006-04-11T23:00:00Z","modified":"2026-10-22T23:47:27Z","fixes":[{"ecosystem":"Debian:12","package":"cyrus-sasl2","fixed_in":["2.1.19.dfsg1-0.2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"cyrus-sasl2","fixed_in":["2.1.19.dfsg1-0.2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"cyrus-sasl2","fixed_in":["2.1.19.dfsg1-0.2"],"sources":["osv"]},{"ecosystem":"Debian:3.1","package":"cyrus-sasl2","fixed_in":["2.1.19-1.5sarge1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"cyrus-sasl","fixed_in":["0:2.1.19-14"],"sources":["osv"]},{"ecosystem":"Red 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