Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2014-9421

24
FAUCET Score

CVE-2014-9421 describes a critical use-after-free and double-free vulnerability in the auth_gssapi_unwrap_data function of MIT Kerberos 5 versions through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1. This flaw allows remote authenticated users to trigger a denial of service (daemon crash) or potentially execute arbitrary code by sending malformed XDR data, specifically impacting services like kadmind. With a CVSS score of 9.0 (Critical), the vulnerability has a network attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability. 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
1.11CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
1.11.1CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
1.11.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
1.11.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
1.11.4CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.21%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0621 is in the 92nd percentile among its peer group of 17,844 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, 0.3 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)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: krb5-0:1.10.3-37.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: krb5-0:1.12.2-14.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: krb5

Vendor Advisories (1)

redhatCVE-2014-9421Moderate

krb5: kadmind doubly frees partial deserialization results (MITKRB5-SA-2015-001)

Feb 3, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-March/151103.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/151437.html
lists.opensuse.org / opensuse-security-announce/2015-02/msg00011.html
lists.opensuse.org / opensuse-security-announce/2015-02/msg00016.html
lists.opensuse.org / opensuse-updates/2015-02/msg00044.html
rhn.redhat.com / errata/RHSA-2015-0439.html
rhn.redhat.com / errata/RHSA-2015-0794.html
github.com / krb5/krb5/commit/a197e92349a4aa2141b5dff12e9dd44c2a2166e3
web.mit.edu / kerberos/advisories/2015-001-patch-r113.txt
web.mit.edu / kerberos/advisories/MITKRB5-SA-2015-001.txt
Vendor Advisory
debian.org / security/2015/dsa-3153
mandriva.com / security/advisories
securityfocus.com / bid/72496
ubuntu.com / usn/USN-2498-1