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CVE-2014-4344

22
FAUCET Score

CVE-2014-4344 is a denial-of-service vulnerability affecting MIT Kerberos 5 versions 1.5.x through 1.12.x, including distributions like Debian and Red Hat. An unauthenticated remote attacker can trigger a NULL pointer dereference and application crash by sending an empty continuation token during a SPNEGO negotiation. The CVSS score of 7.8 indicates high severity with low attack complexity and a critical impact on availability. While no active exploitation or public exploit code is known, and community discussion is minimal, its FAUCET Risk Score of 75/100 suggests a notable potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

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
6.61%
Probability of exploitation in next 30 days
EPSS Percentile
93.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0661 is in the 88th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

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 (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: krb5-0:1.6.1-78.el5
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-2014-4344Moderate

krb5: NULL pointer dereference flaw in SPNEGO acceptor for continuation tokens

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/61051
exchange.xforce.ibmcloud.com / vulnerabilities/95210
github.com / krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b
github.com / krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc
Issue TrackingPatchThird Party Advisory
support.f5.com / kb/en-us/solutions/public/15000/500/sol15561.html
debian.org / security/2014/dsa-3000
Third Party Advisory
mandriva.com / security/advisories
osvdb.org / 109389
securityfocus.com / bid/69160
securitytracker.com / id/1030706