How severe is CVE-2011-0283?

CVE-2011-0283 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-0283 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0283?

CVE-2011-0283 affects Mit Kerberos 5. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-0283?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-0283 published?

CVE-2011-0283 was published on 2011-02-10 and last updated on 2026-06-16.

CVE-2011-0283

CVE-2011-0283 is a medium-severity vulnerability in Mit Kerberos 5 with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mit Kerberos 5
Published: 2011-02-10
Last modified: 2026-06-16

Description

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request packet that does not trigger a response packet.

Frequently asked questions

What is CVE-2011-0283?: The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request packet that does not trigger a response packet.
How severe is CVE-2011-0283?: CVE-2011-0283 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-0283 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0283?: CVE-2011-0283 affects Mit Kerberos 5. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-0283?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0283 published?: CVE-2011-0283 was published on 2011-02-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*

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