CVE-2026-117069

HighCVSS 7.5/10Last modified Nov 3, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-197

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: Nov 2, 2026
Last modified: Nov 3, 2026
NVD status: Deferred

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