#VU107096 Buffer over-read in Qualcomm products - CVE-2025-21421

Vulnerability identifier: #VU107096

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2025-21421

CWE-ID: CWE-126

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
AQT1000
FastConnect 6200
FastConnect 6700
FastConnect 6800
FastConnect 6900
FastConnect 7800
QCA6391
QCA6420
QCA6430
QCM5430
QCM6490
QCS5430
QCS6490
Qualcomm Video Collaboration VC3 Platform
SC8180X+SDX55
SC8380XP
SM6250
Snapdragon 7c Compute Platform (SC7180-AC)
Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"
Snapdragon 7c+ Gen 3 Compute
Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
Snapdragon 8cx Compute Platform (SC8180X-AA
AB)
Snapdragon 8cx Compute Platform (SC8180XP-AC
AF) "Poipu Pro"
Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC
Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA
Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB
BB)
WCD9340
WCD9341
WCD9370
WCD9375
WCD9380
WCD9385
WSA8810
WSA8815
WSA8830
WSA8835
WSA8840
WSA8845
WSA8845H

Software vendor:
Qualcomm

The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to improper input validation in Display. A local application can execute arbitrary code.

Install security update from vendor's website.

• https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2025-bulletin.html