CVE-2001-1377

CVE-2001-1377 is a medium-severity vulnerability in Freeradius 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

Description

Multiple RADIUS implementations do not properly validate the Vendor-Length of the Vendor-Specific attribute, which allows remote attackers to cause a denial of service (crash) via a Vendor-Length that is less than 2.

Frequently asked questions

What is CVE-2001-1377?
Multiple RADIUS implementations do not properly validate the Vendor-Length of the Vendor-Specific attribute, which allows remote attackers to cause a denial of service (crash) via a Vendor-Length that is less than 2.
How severe is CVE-2001-1377?
CVE-2001-1377 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-1377 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1377?
CVE-2001-1377 primarily affects Freeradius. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1377?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-1377 published?
CVE-2001-1377 was published on 2002-03-04 and last updated on 2026-06-16.

References

Affected products (40)

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