UpHeron
All vulnerabilities

Servers and applications

CVE-2007-2926

ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning.

Severity
Medium 4.3
Published
24 Jul 2007
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
13% in the next 30 daysHigher than 96% 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

SoftwareAffected versions
BIND 9Servers and applications · cpe:a:isc:bind
  • Version 9.0
  • Version 9.1
  • Version 9.2
  • Version 9.3
  • Version 9.4
  • Version 9.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-2926
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-2926