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Actively exploited vulnerability

Qualcomm products: improper access control flaw under attack

CVE-2025-21479 · Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability

Concerns everyone who uses it8.6 high

What is affected

Qualcomm products are found on ordinary personal computers and phones, so this is not only a problem for companies. If you use them and have not updated since the fix was released, you are exposed.

Multiple Qualcomm chipsets contain an incorrect authorization vulnerability. This vulnerability allows for memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

CISA's description

What an attacker can do

This is a improper access control flaw. It lets an attacker perform actions or reach data that should be restricted to authorised users.

How it is reached
Needs access to the device or a file opened on it
Access the attacker needs
No account needed
Does the victim have to do something?
Yes, the victim must open or click something

What to do

  1. Update Qualcomm products now. Open the update or "About" screen, install whatever is offered and restart the app or device, because the fix is not active until you do.
  2. Turn on automatic updates so the next fix arrives without you having to look for it.
  3. If your device is too old to receive this update, stop using the affected app for anything sensitive and plan a replacement.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Action required by CISA for US federal agencies

Vendor advisories and fixes

  • docs.qualcomm.comdocs.qualcomm.com/product/publicresources/securitybulletin/june-2025-bulletin.html

How urgent is it

CISA added this vulnerability to its Known Exploited Vulnerabilities catalogue on June 3, 2025, which means there is reliable evidence of attacks in the wild. US federal agencies must fix it by June 24, 2025, a deadline that has already passed. That deadline does not bind anyone else, but it shows how seriously the agency rates it.

The EPSS model estimates a 0.8% probability that this flaw will be exploited somewhere in the next 30 days. That is higher than 57% of all scored vulnerabilities.

Its CVSS severity score is 8.6 out of 10 (high), as recorded in the US National Vulnerability Database.

Technical description

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

NIST National Vulnerability Database
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