CVE-2021-44108: open5gs NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
Published 05-04-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-44108 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in open5gs. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.49%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 05-04-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A null pointer dereference in src/amf/namf-handler.c in Open5GS 2.3.6 and earlier allows remote attackers to Denial of Service via a crafted sbi request to amf.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.49%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.49% on 19-09-2026
19-09-202619-10-2026
EPSS score1.49%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundOpen5Gs
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Open5gs1 product
- open5gs≤ 2.3.6
1 vendor · 1 product
References
2 links- github.com/open5gs/open5gs/commit/d919b2744cd05abae043490f0a3dd1946c1ccb8cX Refsource MISCPatchThird Party Advisory