---
id: CVE-2026-33969
title: >-
  In the NAS Authentication Request message decoding procedure, a missing lower
  bound check causes an infinite loop, leading to Denial of Service.
summary: >-
  In the NAS Authentication Request message decoding procedure, a missing lower
  bound check causes an infinite loop, leading to Denial of Service.
severity: none
cwe:
  - CWE-835
vendor: Samsung Semiconductor
product: Exynos 850
affected:
  - exynos_850 < October 2026
  - exynos_2100 < October 2026
  - exynos_1280 < October 2026
  - exynos_2200 < October 2026
  - exynos_1330 < October 2026
  - exynos_1380 < October 2026
  - exynos_1480 < October 2026
  - exynos_2400 < October 2026
  - exynos_1580 < October 2026
  - exynos_2500 < October 2026
  - exynos_1680 < October 2026
  - exynos_9110 < October 2026
  - exynos_w920 < October 2026
  - exynos_w930 < October 2026
  - exynos_w1000 < October 2026
  - exynos_modem_5123 < October 2026
  - exynos_modem_5300 < October 2026
  - exynos_modem_5400 < October 2026
  - exynos_modem_5410 < October 2026
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T02:37:19.656Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-33969'
references:
  - url: >-
      https://semiconductor.samsung.com/support/quality-support/product-security-updates/
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.697Z'
---

## Overview

In the NAS Authentication Request message decoding procedure, a missing lower bound check causes an infinite loop, leading to Denial of Service.

## Affected

- `exynos_850 < October 2026`
- `exynos_2100 < October 2026`
- `exynos_1280 < October 2026`
- `exynos_2200 < October 2026`
- `exynos_1330 < October 2026`
- `exynos_1380 < October 2026`
- `exynos_1480 < October 2026`
- `exynos_2400 < October 2026`
- `exynos_1580 < October 2026`
- `exynos_2500 < October 2026`
- `exynos_1680 < October 2026`
- `exynos_9110 < October 2026`
- `exynos_w920 < October 2026`
- `exynos_w930 < October 2026`
- `exynos_w1000 < October 2026`
- `exynos_modem_5123 < October 2026`
- `exynos_modem_5300 < October 2026`
- `exynos_modem_5400 < October 2026`
- `exynos_modem_5410 < October 2026`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.