How severe is CVE-2014-4342?

CVE-2014-4342 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-4342 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4342?

CVE-2014-4342 primarily affects Mit Kerberos. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4342?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-4342 published?

CVE-2014-4342 was published on 2014-07-20 and last updated on 2026-06-17.

CVE-2014-4342

CVE-2014-4342 is a medium-severity vulnerability in Mit Kerberos with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Mit Kerberos
Published: 2014-07-20
Last modified: 2026-06-17

Description

MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.

Frequently asked questions

What is CVE-2014-4342?: MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.
How severe is CVE-2014-4342?: CVE-2014-4342 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-4342 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4342?: CVE-2014-4342 primarily affects Mit Kerberos. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4342?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-4342 published?: CVE-2014-4342 was published on 2014-07-20 and last updated on 2026-06-17.

References

Affected products (35)

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos:5-1.8:alpha1:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos:5-1.10.5:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos:5-1.10.6:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos:5-1.10.7:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

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