{"id":"CVE-2006-4435","aliases":["EUVD-2006-4423","GHSA-5rvr-prhw-cr2q"],"status":"published","title":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a...","description":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00339,"percentile":0.27553,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2006-08-29T00:00:00Z","modified":"2026-06-16T22:29:05Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://www.osvdb.org/28195","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://securitytracker.com/id?1016756","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/21642","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/19713","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch"]},{"url":"http://www.openbsd.org/errata.html#sem","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred"]},{"url":"http://www.openbsd.org/errata38.html#sem","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/28617","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4435"},{"url":"https://github.com/advisories/GHSA-5rvr-prhw-cr2q"}],"sources":{"cve":[{"id":"CVE-2006-4435","description":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.","status":"published","published":"2006-08-29T00:00:00Z","modified":"2024-08-07T19:06:07.963Z","updated_at":"2026-11-02T14:33:51.470623Z"}],"euvd":[{"id":"EUVD-2006-4423","description":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.","status":"published","published":"2006-08-29T00:00:00Z","modified":"2024-08-07T19:06:07Z","updated_at":"2026-11-03T01:15:52.149607Z"}],"ghsa":[{"id":"GHSA-5rvr-prhw-cr2q","title":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a...","description":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.","status":"published","published":"2022-05-01T07:18:27Z","modified":"2023-01-31T05:01:52Z","updated_at":"2026-11-02T14:48:09.208669Z"}],"nvd":[{"id":"CVE-2006-4435","description":"OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default.","status":"published","published":"2006-08-29T00:04:00Z","modified":"2026-06-16T22:29:05.727Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:05.928789Z"}]}}