Servers and applications
CVE-2007-2930
The (1) NSID_SHUFFLE_ONLY and (2) NSID_USE_POOL PRNG algorithms in ISC BIND 8 before 8.4.7-P1 generate predictable DNS query identifiers when sending outgoing queries such as NOTIFY messages when answering questions as a resolver, which allows remote attackers to poison DNS caches via unknown vectors. NOTE: this issue is different from CVE-2007-2926.
- Severity
- Medium 4.3
- Published
- 12 Sept 2007
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 7.6% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Over the network · No login needed
- Attacker can
- Change some data
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
BIND 9Servers and applications · cpe:a:isc:bind |
|