LiveActive security incident?Get immediate response
CVE Record

CVE-2011-0281: The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through...

The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used, allows remote attackers to cause a denial of service (file descriptor exhaustion and daemon hang) via a principal name that triggers use of a backslash escape sequence, as demonstrated by a \n sequence.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This issue can let a remote party make an affected Kerberos authentication server stop responding when it uses an LDAP backend. If exploitable in an environment, users and services relying on Kerberos could lose authentication until the daemon is recovered or fixed. Exposure is limited to organizations still running MIT Kerberos 5 versions 1.6.x through 1.9 with the LDAP backend enabled. Environments using newer krb5 releases, non-LDAP backends, or non-MIT Kerberos implementations are not shown as affected in the supplied sources. Treat as a legacy authentication availability risk. It is not listed as actively exploited in the supplied data, but affected KDCs are high-value infrastructure and authentication outages can disrupt business operations broadly. Mitigation focus: Check MIT Kerberos and OS vendor advisories for the fixed package version.; Upgrade affected krb5 KDC systems through supported vendor packages.; Prioritize KDCs using LDAP backends, especially internet-reachable or cross-realm authentication infrastructure..

Prepared

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2011-0281 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.