How severe is CVE-2013-1417?

CVE-2013-1417 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2013-1417 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1417?

CVE-2013-1417 primarily affects Mit Kerberos 5. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1417?

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

When was CVE-2013-1417 published?

CVE-2013-1417 was published on 2013-11-20 and last updated on 2026-06-16.

CVE-2013-1417

CVE-2013-1417 is a low-severity vulnerability in Mit Kerberos 5 with a CVSS 2.0 base score of 3.5. 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-20.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mit Kerberos 5
Published: 2013-11-20
Last modified: 2026-06-16

Description

do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.

Frequently asked questions

What is CVE-2013-1417?: do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.
How severe is CVE-2013-1417?: CVE-2013-1417 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2013-1417 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1417?: CVE-2013-1417 primarily affects Mit Kerberos 5. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1417?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1417 published?: CVE-2013-1417 was published on 2013-11-20 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*

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