What is CVE-2022-41861?

CVE-2022-41861 is a medium-severity vulnerability in Freeradius, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-01-17.

How severe is CVE-2022-41861?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2022-41861 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Freeradius

CVE-2022-41861

A flaw was found in freeradius. A malicious RADIUS client or home server can send a malformed abinary attribute which can cause the server to crash.

Vulnerability class: DoS (Denial of Service)

Published 2023-01-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Freeradius
Freeradius — versions All versions from 0.0.1 to 3.0.25

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

freeradius.org/security/ (Patch, Vendor Advisory)
github.com/FreeRADIUS/freeradius-server/commit/0ec2b39d260e (Patch, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-41861?: CVE-2022-41861 is a medium-severity vulnerability in Freeradius, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2023-01-17.
How severe is CVE-2022-41861?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-41861 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.