CVE & CISA-KEV Catalog

CVE-2015-2696

HIGHEPSS 91th pctl
7.1
CVSS v2
NVD

Description

lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.

How to fix

Remediation Available
krb5Debian
Fixed in:1.13.2+dfsg-3CVE-2015-2696
Fixed in:1.13.2+dfsg-3CVE-2015-2696
Fixed in:1.13.2+dfsg-3CVE-2015-2696
Fixed in:1.13.2+dfsg-3CVE-2015-2696
krb5Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-admin-serverUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-kdcUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-kdc-ldapUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-otpUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-pkinitUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
krb5-userUbuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libgssapi-krb5-2Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libgssrpc4Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libk5crypto3Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkadm5clnt-mit9Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkdb5-7Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrad0Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrb5-3Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1
libkrb5support0Ubuntu
Fixed in:1.12+dfsg-2ubuntu5.2USN-2810-1

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.54%probability of exploitation in 30 days
91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Related Vulnerabilities

Other CWE-18 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2016-7429Low3.77.4%-Fix
CVE-2019-7263Critical9.81.8%--
CVE-2015-7262High7.51.5%--
CVE-2015-0962Medium4.31.4%--
CVE-2014-8994Low3.60.3%--

Common questions

How do I fix CVE-2015-2696?

Published advisories record a fix for 16 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2015-2696 being actively exploited?

Not that we know of. CVE-2015-2696 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

How severe is CVE-2015-2696?

CVE-2015-2696 has a CVSS v2 base score of 7.1, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2015-2696 affect?

Published advisories record a fix for krb5 (Debian), krb5 (Ubuntu), krb5-admin-server (Ubuntu), krb5-kdc (Ubuntu), and 12 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.