{"id":"CVE-2006-2421","aliases":["EUVD-2006-2422","GHSA-4r73-xvcj-763w"],"status":"published","title":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute...","description":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0317,"percentile":0.88111,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2006-05-17T10:00:00Z","modified":"2026-06-16T22:24:58Z","products":[{"vendor":"pragma_systems","product":"fortressssh"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/26498","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/17991","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2006/1820","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://secunia.com/advisories/20114","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-2421"},{"url":"https://github.com/advisories/GHSA-4r73-xvcj-763w"}],"sources":{"cve":[{"id":"CVE-2006-2421","description":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.","status":"published","published":"2006-05-17T10:00:00Z","modified":"2024-08-07T17:51:04.458Z","updated_at":"2026-11-02T14:33:48.500736Z"}],"euvd":[{"id":"EUVD-2006-2422","description":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.","status":"published","published":"2006-05-17T10:00:00Z","modified":"2024-08-07T17:51:04Z","updated_at":"2026-11-03T01:16:01.004094Z"}],"ghsa":[{"id":"GHSA-4r73-xvcj-763w","title":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute...","description":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.","status":"published","published":"2022-05-01T06:59:03Z","modified":"2023-01-31T05:01:16Z","updated_at":"2026-11-02T14:48:01.47363Z"}],"nvd":[{"id":"CVE-2006-2421","description":"Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 allows remote attackers to execute arbitrary code via long SSH_MSG_KEXINIT messages, which may cause an overflow when being logged.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.","status":"published","published":"2006-05-17T10:06:00Z","modified":"2026-06-16T22:24:58.49Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:01:02.98271Z"}]}}