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CVE-2007-2926

ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids...

4.3 MediumPublic exploitFix available

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.

Exploit likelihood

13.1%Down 2.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.3

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.

Record
CVE-2007-2926
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2007-2926
Updated
2026-11-02
EUVDEUVD-2007-2918 No score

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.

Record
EUVD-2007-2918
Updated
2026-11-03
GitHub AdvisoriesGHSA-f6h8-pjrf-562j No score

ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids...

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.

Record
GHSA-f6h8-pjrf-562j
Updated
2026-11-02
OSV No score

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.

Record
CVE-2007-2926
Updated
2026-11-02
OSVDEBIAN-CVE-2007-2926 No score

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.

Record
DEBIAN-CVE-2007-2926
Updated
2026-11-02
OSVopenSUSE-SU-2024:10650-1 No score

bind-9.16.20-1.4 on GA media

These are all security issues fixed in the bind-9.16.20-1.4 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10650-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
bind9
Debian:12
 before 1:9.4.1-P1-1
1:9.4.1-P1-1
bind9
Debian:13
 before 1:9.4.1-P1-1
1:9.4.1-P1-1
bind9
Debian:14
 before 1:9.4.1-P1-1
1:9.4.1-P1-1
bind9
Debian:4.0
 before 1:9.3.4-2etch1, plus listed versions
1:9.3.4-2
1:9.3.4-2etch1
bind9
Debian:3.1
 before 1:9.2.4-1sarge3, plus listed versions
1:9.2.4-11:9.2.4-1sarge11:9.2.4-1sarge2
1:9.2.4-1sarge3
bind
Red Hat:enterprise_linux:2.1::as
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-devel
Red Hat:enterprise_linux:2.1::as
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-utils
Red Hat:enterprise_linux:2.1::as
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind
Red Hat:enterprise_linux:2.1::aw
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-devel
Red Hat:enterprise_linux:2.1::aw
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
Show 76 moreShow less
Affected packages
PackageAffectedFixed
bind-utils
Red Hat:enterprise_linux:2.1::aw
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind
Red Hat:enterprise_linux:2.1::es
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-devel
Red Hat:enterprise_linux:2.1::es
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-utils
Red Hat:enterprise_linux:2.1::es
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind
Red Hat:enterprise_linux:2.1::ws
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-devel
Red Hat:enterprise_linux:2.1::ws
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind-utils
Red Hat:enterprise_linux:2.1::ws
 before 0:9.2.1-9.el2
0:9.2.1-9.el2
bind
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-chroot
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-debuginfo
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-devel
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-libs
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-utils
Red Hat:enterprise_linux:3::as
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-chroot
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-debuginfo
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-devel
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-libs
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-utils
Red Hat:enterprise_linux:3::desktop
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-chroot
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-debuginfo
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-devel
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-libs
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-utils
Red Hat:enterprise_linux:3::es
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-chroot
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-debuginfo
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-devel
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-libs
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind-utils
Red Hat:enterprise_linux:3::ws
 before 20:9.2.4-21.el3
20:9.2.4-21.el3
bind
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-chroot
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-debuginfo
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-devel
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-libs
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-utils
Red Hat:enterprise_linux:4::as
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-chroot
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-devel
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-libs
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-utils
Red Hat:enterprise_linux:4::desktop
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-chroot
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-debuginfo
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-devel
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-libs
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-utils
Red Hat:enterprise_linux:4::es
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-chroot
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-debuginfo
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-devel
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-libs
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind-utils
Red Hat:enterprise_linux:4::ws
 before 20:9.2.4-27.0.1.el4
20:9.2.4-27.0.1.el4
bind
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-chroot
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-devel
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-libbind-devel
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
caching-nameserver
Red Hat:enterprise_linux:5::client_workstation
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind
Red Hat:enterprise_linux:5::client
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-debuginfo
Red Hat:enterprise_linux:5::client
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-libs
Red Hat:enterprise_linux:5::client
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-sdb
Red Hat:enterprise_linux:5::client
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-utils
Red Hat:enterprise_linux:5::client
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-chroot
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-debuginfo
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-devel
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-libbind-devel
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-libs
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-sdb
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind-utils
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
caching-nameserver
Red Hat:enterprise_linux:5::server
 before 30:9.3.3-9.0.1.el5
30:9.3.3-9.0.1.el5
bind
openSUSE:Tumbleweed
From an advisory covering 32 CVEs
 before 9.16.20-1.4
9.16.20-1.4

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBBIND 9 0.3beta - DNS Cache Poisoning2007-08-07

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
affected, aliases, exploits, facts, references, titleExploit-DB, GitHub Advisories, OSV
first indexedCVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-2926 is a medium vulnerability (CVSS 4.3) in Isc Bind, published July 24, 2007. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 13.1%, the 96th percentile. Fixed in bind9 1:9.4.1-P1-1.

References

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