High severity · published Mar 29, 2022
CVE-2021-44081
A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4
7.5
CVSS
1%
EPSS
No
On KEV
Description
A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5gs · Open5gs
2.1.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-44081
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-44081
Exploit
https://github.com/open5gs/open5gs/issues/1206
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