{"id":"CVE-2008-0852","aliases":["EUVD-2008-0859","GHSA-w44x-2qh4-v8w9"],"status":"published","title":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a...","description":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.","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":"2026-11-07","score":0.06233,"percentile":0.93584,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2008-02-21T00:00:00Z","modified":"2026-06-16T22:50:28Z","exploits":[{"source":"exploitdb","id":"EDB-31218","title":"freeSSHd 1.2 - 'SSH2_MSG_NEWKEYS' Remote Denial of Service","type":"dos","platform":"linux","date":"2008-02-17","verified":true,"url":"https://www.exploit-db.com/exploits/31218"}],"products":[{"vendor":"freesshd","product":"freesshd"}],"references":[{"url":"http://secunia.com/advisories/29002","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2008/0591","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/488363/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://aluigi.altervista.org/adv/freesshdnull-adv.txt","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/27845","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-0852"},{"url":"https://github.com/advisories/GHSA-w44x-2qh4-v8w9"}],"sources":{"cve":[{"id":"CVE-2008-0852","description":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.","status":"published","published":"2008-02-21T00:00:00Z","modified":"2024-08-07T08:01:40.099Z","updated_at":"2026-11-02T14:34:48.867091Z"}],"euvd":[{"id":"EUVD-2008-0859","description":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.","status":"published","published":"2008-02-21T00:00:00Z","modified":"2024-08-07T08:01:40Z","updated_at":"2026-11-03T01:39:03.958401Z"}],"ghsa":[{"id":"GHSA-w44x-2qh4-v8w9","title":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a...","description":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.","status":"published","published":"2022-05-01T23:33:49Z","modified":"2023-01-31T05:05:51Z","updated_at":"2026-11-02T14:48:55.758723Z"}],"nvd":[{"id":"CVE-2008-0852","description":"freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.","status":"published","published":"2008-02-21T00:44:00Z","modified":"2026-06-16T22:50:28.723Z","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":"2026-11-02T14:01:25.307768Z"}]}}