Description
OpenAirInterface CN5G AMF<=v2.1.9 has a buffer overflow vulnerability in processing NAS messages. Unauthorized remote attackers can launch a denial-of-service attack and potentially execute malicious code by accessing port N1 and sending an imsi string longer than 1000 to AMF.
References (1)
Core 1
Core References
Scores
CVSS v3
7.5
EPSS
0.0032
EPSS Percentile
23.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-121
Status
published
Products (1)
openairinterface/oai-cn5g-amf
< 2.1.9
Published
Jan 07, 2026
Tracked Since
Feb 18, 2026