{"cve":"CVE-2008-1146","nvd":{"published":"2008-03-04T23:44:00.000","modified":"2026-06-16T22:51:05.260","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/28819","http://www.securiteam.com/securityreviews/5PP0H0UNGW.html","http://www.securityfocus.com/archive/1/487658","http://www.securityfocus.com/bid/27647","http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf"],"products":["cosmicperl:directory_pro","darwin:darwin","navision:financials_server"],"source":"nvd","synced_at":"2026-10-19T19:49:50.107194424+00:00"},"epss":{"cve":"CVE-2008-1146","score":0.01379,"percentile":0.72114,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}