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CVE-2009-0696

33
FAUCET Score

CVE-2009-0696 describes a denial-of-service vulnerability in ISC BIND 9, affecting versions 9.4 before 9.4.3-P3, 9.5 before 9.5.1-P3, and 9.6 before 9.6.1-P1, when configured as a master server. A remote attacker can trigger an assertion failure and daemon exit by sending a crafted dynamic update message containing an ANY record in the prerequisite section. This vulnerability has a CVSS score of 4.3 (medium severity), indicating a network-based attack with medium complexity leading to partial availability impact. While not listed on the KEV catalog or Hot List, a Proof-of-Concept exploit is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
9.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*
9.4.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4.0:*:*:*:*:*:*:*
9.4.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4.0:a1:*:*:*:*:*:*
9.4.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4.0:a2:*:*:*:*:*:*
9.4.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.4.0:a3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

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

Exploit Intelligence

EPSS Score
12.65%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-9300 · Jul 30, 2009
This CVE's current EPSS score of 0.1265 is in the 96th percentile among its peer group of 19,958 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: bind-20:9.2.4-25.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: bind-20:9.2.4-30.el4_8.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind-30:9.3.4-10.P1.el5_3.3
View patch

Vendor Advisories (1)

redhatCVE-2009-0696Important

bind: DoS (assertion failure) via nsupdate packets

Jul 28, 2009

References

ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2009-013.txt.asc
ftp.sco.com / pub/unixware7/714/security/p535243_uw7/p535243b.txt
aix.software.ibm.com / aix/efixes/security/bind_advisory.asc
bugs.debian.org / cgi-bin/bugreport.cgi
secunia.com / advisories/36035
secunia.com / advisories/36038
secunia.com / advisories/36050
secunia.com / advisories/36053
secunia.com / advisories/36056
secunia.com / advisories/36063
secunia.com / advisories/36086
secunia.com / advisories/36098
secunia.com / advisories/36192
secunia.com / advisories/37471
secunia.com / advisories/39334
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10414
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12245
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7806
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
isc.org / node/474
PatchVendor Advisory
redhat.com / archives/fedora-package-announce/2009-July/msg01265.html
up2date.astaro.com / 2009/08/up2date_7505_released.html
wiki.rpath.com / Advisories:rPSA-2009-0113
kb.cert.org / vuls/id/725188
US Government Resource
openbsd.org / errata44.html
securityfocus.com / archive/1/505403/100/0/threaded
securityfocus.com / archive/1/507985/100/0/threaded
securitytracker.com / id
slackware.com / security/viewer.php
ubuntu.com / usn/usn-808-1
vmware.com / security/advisories/VMSA-2009-0016.html
vupen.com / english/advisories/2009/2036
vupen.com / english/advisories/2009/2088
vupen.com / english/advisories/2009/2171
vupen.com / english/advisories/2009/2247
vupen.com / english/advisories/2009/3316