#VU107100 Out-of-bounds read in Qualcomm products - CVE-2025-21438

Vulnerability identifier: #VU107100

Vulnerability risk: Low

CVSSv4.0: 5.9 [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-2025-21438

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FastConnect 6200
Mobile applications / Mobile firmware & hardware
FastConnect 6700
Mobile applications / Mobile firmware & hardware
FastConnect 6900
Mobile applications / Mobile firmware & hardware
FastConnect 7800
Mobile applications / Mobile firmware & hardware
QCA6164
Mobile applications / Mobile firmware & hardware
QCA6174
Mobile applications / Mobile firmware & hardware
QCA6595AU
Mobile applications / Mobile firmware & hardware
QCM5430
Mobile applications / Mobile firmware & hardware
QCM6490
Mobile applications / Mobile firmware & hardware
QCN7606
Mobile applications / Mobile firmware & hardware
QCS5430
Mobile applications / Mobile firmware & hardware
QCS6490
Mobile applications / Mobile firmware & hardware
Qualcomm® Video Collaboration VC3 Platform
Mobile applications / Mobile firmware & hardware
SC8180X+SDX55
Mobile applications / Mobile firmware & hardware
SC8380XP
Mobile applications / Mobile firmware & hardware
SM6250
Mobile applications / Mobile firmware & hardware
Snapdragon 7c Compute Platform (SC7180-AC)
Mobile applications / Mobile firmware & hardware
Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"
Mobile applications / Mobile firmware & hardware
Snapdragon 7c+ Gen 3 Compute
Mobile applications / Mobile firmware & hardware
Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
Mobile applications / Mobile firmware & hardware
Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
Mobile applications / Mobile firmware & hardware
Snapdragon 8cx Compute Platform (SC8180X-AA
Mobile applications / Mobile firmware & hardware
AB)
Mobile applications / Mobile firmware & hardware
Snapdragon 8cx Compute Platform (SC8180XP-AC
Mobile applications / Mobile firmware & hardware
AF) "Poipu Pro"
Mobile applications / Mobile firmware & hardware
Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC
Mobile applications / Mobile firmware & hardware
Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA
Mobile applications / Mobile firmware & hardware
Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB
Mobile applications / Mobile firmware & hardware
BB)
Mobile applications / Mobile firmware & hardware
WCD9370
Mobile applications / Mobile firmware & hardware
WCD9375
Mobile applications / Mobile firmware & hardware
WCD9380
Mobile applications / Mobile firmware & hardware
WCD9385
Mobile applications / Mobile firmware & hardware
WSA8830
Mobile applications / Mobile firmware & hardware
WSA8835
Mobile applications / Mobile firmware & hardware
WSA8840
Mobile applications / Mobile firmware & hardware
WSA8845
Mobile applications / Mobile firmware & hardware
WSA8845H
Mobile applications / Mobile firmware & hardware
QCA6174A
Hardware solutions / Firmware
QCA9377
Hardware solutions / Firmware
QCN7605
Hardware solutions / Firmware

Vendor: Qualcomm

Description

The vulnerability allows a local application to execute arbitrary code.

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

Mitigation
Install security update from vendor's website.

Vulnerable software versions

FastConnect 6200: All versions

FastConnect 6700: All versions

FastConnect 6900: All versions

FastConnect 7800: All versions

QCA6164: All versions

QCA6174: All versions

QCA6174A: All versions

QCA6595AU: All versions

QCA9377: All versions

QCM5430: All versions

QCM6490: All versions

QCN7605: All versions

QCN7606: All versions

QCS5430: All versions

QCS6490: All versions

Qualcomm® Video Collaboration VC3 Platform: All versions

SC8180X+SDX55: All versions

SC8380XP: All versions

SM6250: All versions

Snapdragon 7c Compute Platform (SC7180-AC): All versions

Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro": All versions

Snapdragon 7c+ Gen 3 Compute: All versions

Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite": All versions

Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite": All versions

Snapdragon 8cx Compute Platform (SC8180X-AA: All versions

AB): All versions

Snapdragon 8cx Compute Platform (SC8180XP-AC: All versions

AF) "Poipu Pro": All versions

Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC: All versions

Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA: All versions

Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB: All versions

BB): All versions

WCD9370: All versions

WCD9375: All versions

WCD9380: All versions

WCD9385: All versions

WSA8830: All versions

WSA8835: All versions

WSA8840: All versions

WSA8845: All versions

WSA8845H: All versions

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

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.