CVE-2011-4151
The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, a different vulnerability than CVE-2011-1528.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.54% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mit/kerberos 5
- Source
- cve@mitre.org
EPSS 3.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
- http://www.kb.cert.org/vuls/id/659251US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70891
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
- http://www.kb.cert.org/vuls/id/659251US Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70891
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.