CVE-2022-41860: freeradius NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2022-41860UBUNTU-CVE-2022-41860DEBIAN-CVE-2022-41860
Published 17-01-2023Last modified 03-11-2025
Vulnerability summary
CVE-2022-41860 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in freeradius. EPSS estimates a 1.18% chance of exploitation in the next 30 days, higher than 67.2% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
1.18%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 13 · Related 8Timeline
- 17-01-2023PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
In freeradius, when an EAP-SIM supplicant sends an unknown SIM option, the server will try to look that option up in the internal dictionaries. This lookup will fail, but the SIM code will not check for that failure. Instead, it will dereference a NULL pointer, and cause the server to crash.
CVSS metrics
5 scores · 5 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.18%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
0.00 pp
From 1.18% on 19-09-2026
19-09-202619-10-2026
EPSS score1.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- freeradius≥ 0.9.3, < 3.0.26-r0
Debian1 product
- freeradius< 3.2.0+dfsg-1
Freeradius1 product
- freeradius≥ 0.9.3, ≤ 3.0.25
Ubuntu1 product
- freeradius< 2.2.8+dfsg-0.1ubuntu0.1+esm1 | < 3.0.16+dfsg-1ubuntu3.2 | < 3.0.20+dfsg-3ubuntu0.2
4 vendors · 4 products
