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CVE-2014-8500

52
FAUCET Score

CVE-2014-8500 describes a denial-of-service vulnerability in ISC BIND versions 9.0.x through 9.8.x, 9.9.0 through 9.9.6, and 9.10.0 through 9.10.1. This flaw allows remote attackers to crash the 'named' service and consume excessive memory by exploiting unlimited delegation chaining through a large or infinite number of referrals. With a CVSS score of 7.8 (High), this vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating awareness among security professionals.

Impacted Technologies

VendorProductVersion(s)CPE
9.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
9.0.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.0.1:*:*:*:*:*:*:*
9.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
9.1.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.1.1:*:*:*:*:*:*:*
9.1.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
57.52%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.5752 is in the 98th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bind-32:9.9.4-14.el7_0.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Advanced Update SupportFixed in: bind-32:9.8.2-0.17.rc1.el6_4.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Advanced Update SupportFixed in: bind-32:9.8.2-0.23.rc1.el6_5.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind-30:9.3.6-25.P1.el5_11.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind97-32:9.7.0-21.P2.el5_11.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bind-32:9.8.2-0.30.rc1.el6_6.1
View patch
ubuntupatch availablevia nvd_reference
View patch
debianvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-8500Important

bind: delegation handling denial of service

Dec 8, 2014

References

advisories.mageia.org / MGASA-2014-0524.html
cert.ssi.gouv.fr / site/CERTFR-2014-AVI-512/index.html
Vendor Advisory
ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2015-002.txt.asc
kb.juniper.net / InfoCenter/index
lists.apple.com / archives/security-announce/2015/Sep/msg00004.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00001.html
lists.opensuse.org / opensuse-security-announce/2015-01/msg00017.html
lists.opensuse.org / opensuse-security-announce/2015-03/msg00009.html
lists.opensuse.org / opensuse-security-announce/2015-03/msg00013.html
lists.opensuse.org / opensuse-updates/2015-07/msg00038.html
marc.info
marc.info
rhn.redhat.com / errata/RHSA-2016-0078.html
secunia.com / advisories/62064
secunia.com / advisories/62122
security.gentoo.org / glsa/glsa-201502-03.xml
securitytracker.com / id
kb.isc.org / article/AA-01216
Vendor Advisory
security.netapp.com / advisory/ntap-20190730-0002
support.apple.com / HT205219
ubuntu.com / usn/usn-2437-1
PatchVendor Advisory
debian.org / security/2014/dsa-3094
Vendor Advisory
kb.cert.org / vuls/id/264212
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
oracle.com / technetwork/topics/security/bulletinjan2015-2370101.html
oracle.com / technetwork/topics/security/ovmbulletinjul2016-3090546.html
securityfocus.com / bid/71590