# CVE-2026-117069: CVE-2026-117069

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / n/a: Version not specified (affected). Source: CNA: mitre

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/openairinterface/oai-cn5g-amf/issues/16 (CNA: mitre)

- https://gist.github.com/hackeryounow/1c6741be7d536bd98434ac270dbb1f60 (CNA: mitre)

## Provenance

- CNA: mitre: https://www.cve.org/CVERecord?id=CVE-2026-117069; retrieved 2026-11-02; source updated 2026-11-02

Revision: 968a560bb7891cc64de3eb8583d88ab00a4ce27ff31bd856e8f6dde67ed17702

Canonical: https://y2.dev/cve/CVE-2026-117069

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