{"cve":"CVE-2008-1148","nvd":{"published":"2008-03-04T23:44:00.000","modified":"2026-06-16T22:51:05.567","status":"Modified","description":"A certain pseudo-random number generator (PRNG) algorithm that uses ADD with 0 random hops (aka \"Algorithm A0\"), as used in OpenBSD 3.5 through 4.2 and NetBSD 1.6.2 through 4.0, allows remote attackers to guess sensitive values such as (1) DNS transaction IDs or (2) IP fragmentation IDs by observing a sequence of previously generated values.  NOTE: this issue can be leveraged for attacks such as DNS cache poisoning, injection into TCP packets, and OS fingerprinting.","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-2008-1148","score":0.01424,"percentile":0.72908,"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."]}