How severe is CVE-2015-4680?

CVE-2015-4680 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 none, integrity high, and availability none.

Is CVE-2015-4680 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4680?

CVE-2015-4680 primarily affects Freeradius. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-4680?

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-2015-4680 published?

CVE-2015-4680 was published on 2017-04-05 and last updated on 2026-06-17.

CVE-2015-4680

CVE-2015-4680 is a high-severity vulnerability in Freeradius 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Freeradius
Published: 2017-04-05
Last modified: 2026-06-17

Description

FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA certificates.

Frequently asked questions

What is CVE-2015-4680?: FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA certificates.
How severe is CVE-2015-4680?: CVE-2015-4680 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 none, integrity high, and availability none.
Is CVE-2015-4680 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4680?: CVE-2015-4680 primarily affects Freeradius. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-4680?: 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-2015-4680 published?: CVE-2015-4680 was published on 2017-04-05 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:a:freeradius:freeradius:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.6:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.7:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:3.0.8:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.4:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.5:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.6:*:*:*:*:*:*:*
cpe:2.3:a:freeradius:freeradius:2.2.7:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:raspberry_pi:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:sp2:*:*:*:*:*:*

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