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CVE-2007-2926

27
FAUCET Score

CVE-2007-2926 describes a DNS cache poisoning vulnerability in ISC BIND versions 9 through 9.5.0a5. The weakness stems from a predictable random number generator used for DNS query IDs, allowing remote attackers to guess subsequent IDs. This vulnerability has a CVSS score of 4.3 (Medium) with a low impact on integrity, as it requires moderate attack complexity and no authentication. While not listed on the KEV catalog or Hot List, an exploit (EDB-4266) exists, though there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
9.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
9.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
9.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*
9.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*
9.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
13.09%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-4266 · Aug 7, 2007
This CVE's current EPSS score of 0.1309 is in the 96th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: bind-0:9.2.1-9.el2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: bind-20:9.2.4-21.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: bind-20:9.2.4-27.0.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind-30:9.3.3-9.0.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-2926Moderate

bind cryptographically weak query ids

Jul 23, 2007

References

aix.software.ibm.com / aix/efixes/security/README
patches.sgi.com / support/free/security/advisories/20070801-01-P.asc
docs.info.apple.com / article.html
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
lists.apple.com / archives/security-announce/2007/Nov/msg00002.html
marc.info
secunia.com / advisories/26148
secunia.com / advisories/26152
Vendor Advisory
secunia.com / advisories/26160
secunia.com / advisories/26180
secunia.com / advisories/26195
secunia.com / advisories/26217
secunia.com / advisories/26227
secunia.com / advisories/26231
secunia.com / advisories/26236
secunia.com / advisories/26261
secunia.com / advisories/26308
secunia.com / advisories/26330
secunia.com / advisories/26509
secunia.com / advisories/26515
secunia.com / advisories/26531
secunia.com / advisories/26605
secunia.com / advisories/26607
secunia.com / advisories/26847
secunia.com / advisories/26925
secunia.com / advisories/27643
security.freebsd.org / advisories/FreeBSD-SA-07:07.bind.asc
exchange.xforce.ibmcloud.com / vulnerabilities/35575
issues.rpath.com / browse/RPL-1587
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10293
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2226
sunsolve.sun.com / search/document.do
support.avaya.com / elmodocs2/security/ASA-2007-389.htm
support.nortel.com / go/main.jsp
www-1.ibm.com / support/search.wss
www-1.ibm.com / support/search.wss
debian.org / security/2007/dsa-1341
gentoo.org / security/en/glsa/glsa-200708-13.xml
isc.org / index.pl
kb.cert.org / vuls/id/252735
US Government Resource
mandriva.com / security/advisories
novell.com / linux/security/advisories/2007_47_bind.html
openpkg.com / security/advisories/OpenPKG-SA-2007.022.html
redhat.com / support/errata/RHSA-2007-0740.html
securiteam.com / securitynews/5VP0L0UM0A.html
securityfocus.com / archive/1/474516/100/0/threaded
securityfocus.com / archive/1/474545/100/0/threaded
securityfocus.com / archive/1/474808/100/0/threaded
securityfocus.com / archive/1/474856/100/0/threaded
securityfocus.com / bid/25037
securityfocus.com / bid/26444
securitytracker.com / id
slackware.org / security/viewer.php
trusteer.com / docs/bind9dns.html
trusteer.com / docs/bind9dns_s.html
trustix.org / errata/2007/0023
ubuntu.com / usn/usn-491-1
us-cert.gov / cas/techalerts/TA07-319A.html
US Government Resource
vupen.com / english/advisories/2007/2627
vupen.com / english/advisories/2007/2662
vupen.com / english/advisories/2007/2782
vupen.com / english/advisories/2007/2914
vupen.com / english/advisories/2007/2932
vupen.com / english/advisories/2007/3242
vupen.com / english/advisories/2007/3868