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.

Published: 2017-04-05 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4680 is rated Moderate Risk (50.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.38%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-4680

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-19 0.25% 0.38% +0.13%
2 2025-03-30 0.62% 0.25% -0.36%
3 2025-03-29 — 0.62% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4680

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-4680

OS Trackers for CVE-2015-4680

vendor priority summary link
debian not yet assigned CVE-2015-4680 not yet assigned priority: Debian including 1 source packages (freeradius), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-4680
redhat medium — https://access.redhat.com/security/cve/CVE-2015-4680
suse low CVE-2015-4680 severity low: SUSE including 161 source package names (freeradius-client, freeradius-client-devel, …), 391 product×package rows across 43 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise High Performance Computing 12 SP5, … (43 product lines)): Fixed 228, Known Not Affected 163. https://www.suse.com/security/cve/CVE-2015-4680/
ubuntu low CVE-2015-4680 low priority: Ubuntu including 1 source packages (freeradius), 9 status rows across 9 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 4, not-affected 3, DNE 1, needed 1. https://ubuntu.com/security/CVE-2015-4680

Affected software / configurations for CVE-2015-4680

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

References for CVE-2015-4680

cvelogic Threat Intelligence