How severe is CVE-2008-0063?

CVE-2008-0063 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2008-0063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-0063?

CVE-2008-0063 primarily affects Mit Kerberos 5. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-0063?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-0063 published?

CVE-2008-0063 was published on 2008-03-19 and last updated on 2026-06-16.

CVE-2008-0063

CVE-2008-0063 is a high-severity vulnerability in Mit Kerberos 5 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-908.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-908
Affected product: Mit Kerberos 5
Published: 2008-03-19
Last modified: 2026-06-16

Description

The Kerberos 4 support in KDC in MIT Kerberos 5 (krb5kdc) does not properly clear the unused portion of a buffer when generating an error message, which might allow remote attackers to obtain sensitive information, aka "Uninitialized stack values."

Frequently asked questions

What is CVE-2008-0063?: The Kerberos 4 support in KDC in MIT Kerberos 5 (krb5kdc) does not properly clear the unused portion of a buffer when generating an error message, which might allow remote attackers to obtain sensitive information, aka "Uninitialized stack values."
How severe is CVE-2008-0063?: CVE-2008-0063 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2008-0063 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-0063?: CVE-2008-0063 primarily affects Mit Kerberos 5. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-0063?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-0063 published?: CVE-2008-0063 was published on 2008-03-19 and last updated on 2026-06-16.

References

Affected products (17)

cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:10.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux:10.1:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:10:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:10:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp1:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:7:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*

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