{"id":"CVE-2006-4021","aliases":["EUVD-2006-4014","GHSA-r4jq-cqww-9m6q"],"status":"published","title":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large...","description":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large numbers of messages by identifying collisions using a birthday attack on the custom padding mechanism for ECB mode encryption.","severity":{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0066,"percentile":0.51876,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2006-08-17T21:00:00Z","modified":"2026-06-16T22:28:16Z","products":[{"vendor":"scatterchat","product":"scatterchat"}],"references":[{"url":"http://www.securityfocus.com/bid/19485","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/443038/100/100/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.scatterchat.com/advisories/2006-01_tech.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","URL Repurposed"]},{"url":"http://www.scatterchat.com/advisories/2006-01_non_tech.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","URL Repurposed"]},{"url":"http://securityreason.com/securityalert/1396","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4021"},{"url":"https://github.com/advisories/GHSA-r4jq-cqww-9m6q"}],"sources":{"cve":[{"id":"CVE-2006-4021","description":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large numbers of messages by identifying collisions using a birthday attack on the custom padding mechanism for ECB mode encryption.","status":"published","published":"2006-08-17T21:00:00Z","modified":"2024-08-07T18:57:43.87Z","updated_at":"2026-11-02T14:33:51.085765Z"}],"euvd":[{"id":"EUVD-2006-4014","description":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large numbers of messages by identifying collisions using a birthday attack on the custom padding mechanism for ECB mode encryption.","status":"published","published":"2006-08-17T21:00:00Z","modified":"2024-08-07T18:57:43Z","updated_at":"2026-11-03T01:15:53.967777Z"}],"ghsa":[{"id":"GHSA-r4jq-cqww-9m6q","title":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large...","description":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large numbers of messages by identifying collisions using a birthday attack on the custom padding mechanism for ECB mode encryption.","status":"published","published":"2022-05-01T07:14:39Z","modified":"2023-01-31T05:01:58Z","updated_at":"2026-11-02T14:48:10.096738Z"}],"nvd":[{"id":"CVE-2006-4021","description":"The cryptographic module in ScatterChat 1.0.x allows attackers to identify patterns in large numbers of messages by identifying collisions using a birthday attack on the custom padding mechanism for ECB mode encryption.","status":"published","published":"2006-08-17T21:04:00Z","modified":"2026-06-16T22:28:16.727Z","cvss":[{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:01:05.130518Z"}]}}