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CVE-2014-4343

22
FAUCET Score

CVE-2014-4343 describes a double free vulnerability in the SPNEGO initiator within MIT Kerberos 5 versions 1.10.x through 1.12.x before 1.12.2, also affecting Debian and Red Hat. This flaw allows remote attackers to trigger a denial of service or potentially execute arbitrary code by manipulating network traffic to specify a different security mechanism. With a CVSS score of 7.6, it is considered highly severe due to its network attack vector, high attack complexity, and potential for complete confidentiality, integrity, and availability impact. Despite its severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
1.10CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
1.10.1CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
1.10.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
1.10.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.42%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0642 is in the 68th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: krb5-0:1.10.3-33.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: krb5-0:1.12.2-14.el7
View patch

Vendor Advisories (1)

redhatCVE-2014-4343Low

krb5: double-free flaw in SPNEGO initiators

Jul 15, 2014

References

advisories.mageia.org / MGASA-2014-0345.html
aix.software.ibm.com / aix/efixes/security/nas_advisory1.asc
krbdev.mit.edu / rt/Ticket/Display.html
Issue TrackingThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2014-August/136360.html
rhn.redhat.com / errata/RHSA-2015-0439.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/59102
secunia.com / advisories/60082
secunia.com / advisories/60448
secunia.com / advisories/61052
security.gentoo.org / glsa/glsa-201412-53.xml
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/95211
github.com / krb5/krb5/commit/f18ddf5d82de0ab7591a36e465bc24225776940f
Issue TrackingPatchThird Party Advisory
support.f5.com / kb/en-us/solutions/public/15000/500/sol15553.html
debian.org / security/2014/dsa-3000
Third Party Advisory
osvdb.org / 109390
securityfocus.com / bid/69159
securitytracker.com / id/1030706