{"id":"CVE-2008-1146","url":"https://www.cyber-defence.io/tools/cve/CVE-2008-1146","generatedAt":"2026-10-27T17:44:41.805Z","title":"A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 3-bit random hops (aka \"Algorithm X3\"), as used in OpenBSD 2.8 through 4.2, allows remote attackers to guess sensitive values such as DNS transaction IDs by observing a sequence…","description":"A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 3-bit random hops (aka \"Algorithm X3\"), as used in OpenBSD 2.8 through 4.2, allows remote attackers to guess sensitive values such as DNS transaction IDs by observing a sequence of previously generated values.  NOTE: this issue can be leveraged for attacks such as DNS cache poisoning against OpenBSD's modification of BIND.","published":"2008-03-04T23:44:00.000Z","lastModified":"2026-06-16T22:51:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":6.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["cosmicperl/directory pro","darwin/darwin","navision/financials server"],"epss":{"score":0.01379,"percentile":0.71913,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.38%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://secunia.com/advisories/28819","source":"cve@mitre.org"},{"url":"http://www.securiteam.com/securityreviews/5PP0H0UNGW.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/487658","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/27647","source":"cve@mitre.org"},{"url":"http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/40329","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/28819","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securiteam.com/securityreviews/5PP0H0UNGW.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/487658","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/27647","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/40329","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2008-1146","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}