How severe is CVE-2006-3083?

CVE-2006-3083 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2006-3083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-3083?

CVE-2006-3083 primarily affects Heimdal. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-3083?

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-2006-3083 published?

CVE-2006-3083 was published on 2006-08-09 and last updated on 2026-06-16.

CVE-2006-3083

CVE-2006-3083 is a high-severity vulnerability in Heimdal with a CVSS 2.0 base score of 7.2. 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Heimdal
Published: 2006-08-09
Last modified: 2026-06-16

Description

The (1) krshd and (2) v4rcp applications in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, when running on Linux and AIX, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which allows local users to gain privileges by causing setuid to fail to drop privileges using attacks such as resource exhaustion.

Frequently asked questions

What is CVE-2006-3083?: The (1) krshd and (2) v4rcp applications in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, when running on Linux and AIX, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which allows local users to gain privileges by causing setuid to fail to drop privileges using attacks such as resource exhaustion.
How severe is CVE-2006-3083?: CVE-2006-3083 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2006-3083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3083?: CVE-2006-3083 primarily affects Heimdal. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-3083?: 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-2006-3083 published?: CVE-2006-3083 was published on 2006-08-09 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:heimdal:heimdal:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.4:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:*

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