How severe is CVE-2009-3295?

CVE-2009-3295 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-3295 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3295?

CVE-2009-3295 affects Mit Kerberos 5. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-3295?

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

When was CVE-2009-3295 published?

CVE-2009-3295 was published on 2009-12-29 and last updated on 2026-06-16.

CVE-2009-3295

CVE-2009-3295 is a medium-severity vulnerability in Mit Kerberos 5 with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 40% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 40% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mit Kerberos 5
Published: 2009-12-29
Last modified: 2026-06-16

Description

The prep_reprocess_req function in kdc/do_tgs_req.c in the cross-realm referral implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a ticket request.

Frequently asked questions

What is CVE-2009-3295?: The prep_reprocess_req function in kdc/do_tgs_req.c in the cross-realm referral implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a ticket request.
How severe is CVE-2009-3295?: CVE-2009-3295 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-3295 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3295?: CVE-2009-3295 affects Mit Kerberos 5. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-3295?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3295 published?: CVE-2009-3295 was published on 2009-12-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*

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