An integer truncation vulnerability in the NAS decoder of OpenAirInterface (OAI) CN5G AMF v2.2.1 allows an unauthenticated remote attacker to cause a denial of service (DoS) via crafted NAS Registration Requests containing a malformed IMEISV in the 5GS Mobile Identity IE. The Type6NasIe::Validate() function truncates a 32-bit length value to 16 bits, bypassing length validation and causing an out-of-bounds heap read in DecodeImeisv(), which can crash the AMF process.
Metrics
Affected Vendors & Products
References
History
Mon, 02 Nov 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openairinterface
Openairinterface oai-cn5g-amf |
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| Vendors & Products |
Openairinterface
Openairinterface oai-cn5g-amf |
Mon, 02 Nov 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An integer truncation vulnerability in the NAS decoder of OpenAirInterface (OAI) CN5G AMF v2.2.1 allows an unauthenticated remote attacker to cause a denial of service (DoS) via crafted NAS Registration Requests containing a malformed IMEISV in the 5GS Mobile Identity IE. The Type6NasIe::Validate() function truncates a 32-bit length value to 16 bits, bypassing length validation and causing an out-of-bounds heap read in DecodeImeisv(), which can crash the AMF process. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-11-02T00:00:00.000Z
Updated: 2026-11-02T18:51:32.795Z
Reserved: 2026-10-27T00:00:00.000Z
Link: CVE-2026-117069
No data.
Status : Deferred
Published: 2026-11-02T19:18:00.827
Modified: 2026-11-02T19:35:33.347
Link: CVE-2026-117069
No data.