Vulnerability record/PUBLISHED/Published Nov 2, 2026 00:00:00 UTC

CVE-2026-117069

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.

Base scoreN/A/ 10

SeverityNoneCVSS unscored

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityNone

No CVSS vector is available for this record.

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authoritymitre

Last updatedNov 2, 2026 18:51:32 UTC

PublishedNov 2, 2026 00:00:00 UTC

ReservedOct 27, 2026 00:00:00 UTC