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CVE-2009-4022

17
FAUCET Score

CVE-2009-4022 describes an unspecified vulnerability in various versions of ISC BIND, specifically affecting versions 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta before 9.7.0b3, when DNSSEC validation is enabled and checking disabled. This flaw allows remote attackers to perform DNS cache poisoning by sending crafted Additional section data in response to a recursive client query, which is mishandled during simultaneous DNSSEC record requests. The vulnerability has a low CVSS score of 2.6, indicating a network attack vector with high attack complexity and a potential impact limited to partial integrity compromise, with no confidentiality or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0.0:rc1:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0.0:rc2:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0.0:rc3:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.95%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0795 is in the 94th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 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 (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind-30:9.3.6-4.P1.el5_4.1
View patch

Vendor Advisories (1)

redhatCVE-2009-4022Moderate

bind: cache poisoning using not validated DNSSEC responses

Nov 23, 2009

References

ftp.sco.com / pub/unixware7/714/security/p535243_uw7/p535243b.txt
aix.software.ibm.com / aix/efixes/security/bind9_advisory.asc
lists.apple.com / archives/Security-announce/2011//Oct/msg00003.html
lists.vmware.com / pipermail/security-announce/2010/000082.html
osvdb.org / 60493
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/37426
Vendor Advisory
secunia.com / advisories/37491
Vendor Advisory
secunia.com / advisories/38219
Vendor Advisory
secunia.com / advisories/38240
Vendor Advisory
secunia.com / advisories/38794
Vendor Advisory
secunia.com / advisories/38834
Vendor Advisory
secunia.com / advisories/39334
Vendor Advisory
secunia.com / advisories/40730
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/54416
h20564.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
issues.rpath.com / browse/RPL-3152
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10821
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11745
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7261
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7459
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
support.apple.com / kb/HT5002
isc.org / advisories/CVE2009-4022
Vendor Advisory
isc.org / advisories/CVE-2009-4022v6
Vendor Advisory
redhat.com / archives/fedora-package-announce/2009-November/msg01172.html
redhat.com / archives/fedora-package-announce/2009-November/msg01188.html
wiki.rpath.com / wiki/Advisories:rPSA-2010-0018
ibm.com / support/docview.wss
ibm.com / support/docview.wss
ibm.com / support/docview.wss
kb.cert.org / vuls/id/418861
US Government Resource
mandriva.com / security/advisories
openwall.com / lists/oss-security/2009/11/24/1
openwall.com / lists/oss-security/2009/11/24/2
openwall.com / lists/oss-security/2009/11/24/8
redhat.com / support/errata/RHSA-2009-1620.html
Vendor Advisory
securityfocus.com / bid/37118
ubuntu.com / usn/USN-888-1
vupen.com / english/advisories/2009/3335
Vendor Advisory
vupen.com / english/advisories/2010/0176
Vendor Advisory
vupen.com / english/advisories/2010/0528
Vendor Advisory
vupen.com / english/advisories/2010/0622
Vendor Advisory