{"id":"CVE-2000-0543","aliases":["EUVD-2000-0540","GHSA-m7mj-vcp8-4rpq"],"status":"published","title":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a...","description":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.","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":0.01092,"percentile":0.65632,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2000-06-14T04:00:00Z","modified":"2026-06-16T21:51:57Z","products":[{"vendor":"pgp","product":"certificate_server"}],"references":[{"url":"http://www.securityfocus.com/bid/1343","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2000-06/0107.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/4695","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-0543"},{"url":"https://github.com/advisories/GHSA-m7mj-vcp8-4rpq"}],"sources":{"cve":[{"id":"CVE-2000-0543","description":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.","status":"published","published":"2000-07-12T04:00:00Z","modified":"2024-08-08T05:21:31.152Z","updated_at":"2026-11-02T14:33:41.553118Z"}],"euvd":[{"id":"EUVD-2000-0540","description":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.","status":"published","published":"2000-07-12T04:00:00Z","modified":"2024-08-08T05:21:31Z","updated_at":"2026-11-03T00:56:24.66443Z"}],"ghsa":[{"id":"GHSA-m7mj-vcp8-4rpq","title":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a...","description":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.","status":"published","published":"2022-04-30T18:13:51Z","modified":"2023-01-30T05:05:03Z","updated_at":"2026-11-02T14:47:10.981212Z"}],"nvd":[{"id":"CVE-2000-0543","description":"The command port for PGP Certificate Server 2.5.0 and 2.5.1 allows remote attackers to cause a denial of service if their hostname does not have a reverse DNS entry and they connect to port 4000.","status":"published","published":"2000-06-14T04:00:00Z","modified":"2026-06-16T21:51:57.777Z","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":"2026-11-02T13:59:02.365657Z"}]}}