Description
OpenAirInterface Version 2.2.0 has a Buffer Overflow vulnerability in processing UplinkNASTransport containing Authentication Response containing a NAS PDU with oversize response (For example 100 byte). The response is decoded by AMF and passed to the AUSF component for verification. AUSF crashes on receiving this oversize response. This can prohibit users from further registration and verification and can cause Denial of Services (DoS).
Affected products
openairinterface: oai-cn5g-amf
References3
- gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues/6 ExploitIssue TrackingThird Party Advisory
- gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues?show=eyJpaWQi… ExploitIssue TrackingThird Party Advisory
- gitlab.eurecom.fr/oai/cn5g/oai-cn5g-ausf/-/issues?show=eyJpaWQi… ExploitIssue TrackingThird Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 34 · as of 12 November 2026
- CWE
- CWE-120
Could this be exploited in your environment?
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