CVE-2015-2694: n/a vulnerability

CVE-2015-2694: The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track w...

The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 05:24 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects MIT Kerberos KDC preauthentication handling. In vulnerable 1.12.x and 1.13.x releases before 1.13.2, some requests could bypass an intended preauthentication requirement, weakening a central authentication control. Exposure is most likely on MIT krb5 KDC deployments running 1.12.x or 1.13.x before 1.13.2, especially where OTP or PKINIT preauthentication is enabled. Distribution packages may have backported fixes, so package advisories matter. Treat this as a high-priority identity infrastructure fix if affected Kerberos KDCs exist. The issue weakens a gatekeeping control in authentication, but urgency is tempered by no sourced evidence of active exploitation in the provided bundle. Mitigation focus: Upgrade MIT krb5 to 1.13.2 or a later fixed release.; Apply vendor-fixed Kerberos packages from Ubuntu, Oracle, or your platform provider.; Prioritize internet- or partner-reachable KDCs and high-value identity realms..

Prepared: Jun 13, 2026, 22:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 25, 2015, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
https://github.com/krb5/krb5/commit/e3b5a5e5267818c97750b266df50b6a3d4649604CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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