CVE-2008-1148 json
A certain pseudo-random number generator (PRNG) algorithm that uses ADD with 0 random hops (aka "Algorithm A0"), as used in OpenBSD 3.5 thr…
published 2008-03-04 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-1157
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.42% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
References
-
secunia.com
/advisories/28819
third-party-advisory, vendor-advisory
-
securityfocus.com
/archive/1/487658
mailing-list
-
exchange.xforce.ibmcloud.com
/vulnerabilities/41157
vdb-entry
- trusteer.com /docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf
- securiteam.com /securityreviews/5PP0H0UNGW.html
-
exchange.xforce.ibmcloud.com
/vulnerabilities/40329
vdb-entry
-
securityfocus.com
/bid/27647
vdb-entry
Sources
- CVE List CVE-2008-1148
- NVD CVE-2008-1148
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.