CVE-2015-2695
MEDIUMEPSS 93th pctlDescription
lib/gssapi/spnego/spnego_mech.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 SPNEGO packet that is mishandled during a gss_inquire_context call.
How to fix
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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
High risk: more likely to be exploited than 93% of all known CVEs.
References
Related Vulnerabilities
Other CWE-763 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2007-4367 | High | 9.3 | 8.2% | - | Fix |
| CVE-2013-4695 | High | 7.8 | 5.3% | - | - |
| CVE-2020-36224 | High | 7.5 | 4.3% | - | Fix |
| CVE-2022-31625 | High | 8.1 | 3.8% | - | Fix |
| CVE-2021-42377 | Critical | 9.8 | 3.6% | - | Fix |
| CVE-2022-37451 | High | 7.5 | 3.3% | - | Fix |
Common questions
How do I fix CVE-2015-2695?
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-2015-2695 being actively exploited?
Not that we know of. CVE-2015-2695 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 6.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 93% of all scored CVEs.
How severe is CVE-2015-2695?
CVE-2015-2695 has a CVSS v2 base score of 5.0, rated medium. 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-2015-2695 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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Markdown
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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 2026-06-17.