An integer underflow 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 truncated SUCI in the 5GS Mobile Identity IE. Insufficient length validation in the DecodeSuci() function results in an out-of-bounds heap read, causing the AMF process to crash.

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History

Mon, 02 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Openairinterface
Openairinterface oai-cn5g-amf
Vendors & Products Openairinterface
Openairinterface oai-cn5g-amf

Mon, 02 Nov 2026 18:45:00 +0000

Type Values Removed Values Added
Title Integer Underflow in AMF NAS Decoder Causing Denial of Service
Weaknesses CWE-190
CWE-20

Mon, 02 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Description An integer underflow 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 truncated SUCI in the 5GS Mobile Identity IE. Insufficient length validation in the DecodeSuci() function results in an out-of-bounds heap read, causing the AMF process to crash.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-02T17:24:23.856Z

Reserved: 2026-10-27T00:00:00.000Z

Link: CVE-2026-117068

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-02T18:18:43.923

Modified: 2026-11-02T19:35:33.347

Link: CVE-2026-117068

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T19:15:16Z

Weaknesses