---
id: CVE-2026-20525
title: 'In Modem, there is a possible system crash due to improper input validation'
summary: >-
  In Modem, there is a possible system crash due to improper input validation.
  This could lead to remote denial of service, if a UE has connected to a rogue
  base station controlled by the attacker, with no additional execution
  privileges n…
severity: none
cwe:
  - CWE-617
vendor: 'MediaTek, Inc.'
product: MediaTek chipset
affected:
  - mediatek_chipset MT2716
  - mediatek_chipset MT6835
  - mediatek_chipset MT6858
  - mediatek_chipset MT6878
  - mediatek_chipset MT6881
  - mediatek_chipset MT6897
  - mediatek_chipset MT6899
  - mediatek_chipset MT6982
  - mediatek_chipset MT6986
  - mediatek_chipset MT6988
  - mediatek_chipset MT6991
  - mediatek_chipset MT6993
  - mediatek_chipset MT8668
  - mediatek_chipset MT8676
  - mediatek_chipset MT8678
  - mediatek_chipset MT8755
  - mediatek_chipset MT8775
  - mediatek_chipset MT8792
  - mediatek_chipset MT8793
  - mediatek_chipset MT8863
  - mediatek_chipset MT8873
  - mediatek_chipset MT8883
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T02:16:51.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20525'
references:
  - url: 'https://www.mediatek.com/product-security-bulletin/October-2026'
    label: security@mediatek.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-05T02:10:36.193Z'
---

## Overview

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01870473 / MOLY00814393; Issue ID: MSV-9041.

## Remediation

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