CVE-2025-21475 Buffer Over-read in Display
An attacker can trigger memory corruption in Qualcomm Snapdragon display processing via large unsigned DisplayId values, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-21475?
CVE-2025-21475 is a high-severity memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 6 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption while processing escape code, when DisplayId is passed with large unsigned value.
Which versions are affected by CVE-2025-21475?
It affects 40 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware and 34 more.
How do I fix CVE-2025-21475?
No fix has been published for CVE-2025-21475 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-21475 being exploited?
There is no known exploitation of CVE-2025-21475 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Aqt1000 Firmware
- CVE-2025-21479 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2025-21480 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2023-28562 Buffer Copy Without Checking Size of Input in QESL
- CVE-2022-40514 Buffer copy without checking size of input in WLAN Firmware
- CVE-2022-22096 Memory corruption in Snapdragon Connectivity, Snapdragon Mobile
Sources
Also known as GHSA-w3rx-344f-qxwh.