HIGH
CVE-2011-0284
CWE-399Published: March 20, 2011· Updated: Jun 16, 2026
7.6
CVSS v3.1
Official Description
Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data field containing typed data.
Technical Analysis
CVE-2011-0284 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:H/Au:N/C:C/I:C/A:C
Affected Vendors & Products
mit1 product(s)
kerberos 5
Source: NVD CPE · 7 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (46)
→
http://secunia.com/advisories/43783Vendor Advisory
→
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-003.txtPatch · Vendor Advisory
→
http://www.kb.cert.org/vuls/id/943220Patch · US Government Resource
Quick Facts
CVE IDCVE-2011-0284
CVSS Score7.6 / 10
SeverityHIGH
WeaknessCWE-399
CISA KEVNo
Affected1 vendor(s)
PublishedMar 20, 2011
Related CVEs (CWE-399)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-0284 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.