{"id":"CVE-2001-1319","aliases":["EUVD-2001-1300","GHSA-74fh-48jj-6gqq"],"status":"published","title":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via...","description":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.33349,"percentile":0.98385,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-07-16T04:00:00Z","modified":"2026-06-16T21:56:02Z","products":[{"vendor":"microsoft","product":"exchange_server"}],"references":[{"url":"http://www.cert.org/advisories/CA-2001-18.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://ciac.llnl.gov/ciac/bulletins/l-116.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred","Patch","Third Party Advisory","US Government Resource","Vendor Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/CFCN-4YAQC7","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6899","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.kb.cert.org/vuls/id/763400","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/3045","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1319"},{"url":"http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3"},{"url":"https://github.com/advisories/GHSA-74fh-48jj-6gqq"}],"sources":{"cve":[{"id":"CVE-2001-1319","description":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.","status":"published","published":"2002-05-03T04:00:00Z","modified":"2024-08-08T04:51:08.205Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1300","description":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.","status":"published","published":"2002-05-03T04:00:00Z","modified":"2024-08-08T04:51:08Z","updated_at":"2026-11-03T00:56:28.268448Z"}],"ghsa":[{"id":"GHSA-74fh-48jj-6gqq","title":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via...","description":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.","status":"published","published":"2022-04-30T18:17:48Z","modified":"2025-04-03T03:43:01Z","updated_at":"2026-11-02T15:00:37.520566Z"}],"nvd":[{"id":"CVE-2001-1319","description":"Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.","status":"published","published":"2001-07-16T04:00:00Z","modified":"2026-06-16T21:56:02.123Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}