Description
OpenAirInterface v2.2.0 accepts Security Mode Complete without any integrity protection. Configuration has supported integrity NIA1 and NIA2. But if an UE sends initial registration request with only security capability IA0, OpenAirInterface accepts and proceeds. This downgrade security context can lead to the possibility of replay attack.
References (1)
Scores
CVSS v3
7.5
EPSS
0.0003
EPSS Percentile
9.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-294
Status
published
Products (1)
openairinterface/oai-cn5g-amf
2.2.0
Published
Apr 08, 2026
Tracked Since
Apr 08, 2026