---
title: "CVE-2025-21479: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-21479/
description: "CVE-2025-21479 (Qualcomm Multiple Chipsets): Exploited in the wild (CISA KEV). Memory corruption due to unauthorized command execution in GPU micronode…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-06-03
date_modified: 2026-02-26
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-21479"
kev: true
cvss: 8.6
epss: 0.00843
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-21479: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Qualcomm Multiple Chipsets. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-06-03, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-06-24 ; treat that as the outer limit, not the target.
- EPSS 0.8% , percentile 57: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 57% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.

## What it is

Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

## Affected products (CVE record)

- Qualcomm, Inc. Snapdragon: AQT1000, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, QCA6391, QCM4490, QCS4490, SD855, SM4635, SM6250

## Severity

- qualcomm CVSS 3.1: 8.6 `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-06-03; federal due date 2025-06-24. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.84% probability of exploitation activity in the next 30 days; percentile 57.

## Sources

- [Listed in CISA KEV notes (docs.qualcomm.com)](https://docs.qualcomm.com/product/publicresources/securitybulletin/june-2025-bulletin.html)
- [CVE.org record CVE-2025-21479](https://www.cve.org/CVERecord?id=CVE-2025-21479)
- [NVD entry CVE-2025-21479](https://nvd.nist.gov/vuln/detail/CVE-2025-21479)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21479)

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Source page: https://erroneo.us/security/cve/CVE-2025-21479/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt