#VU107101 Out-of-bounds write in Qualcomm products - CVE-2025-21439

Published: 2025-04-07

Vulnerability identifier: #VU107101

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-2025-21439

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

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 6700: All versions

FastConnect 6900: All versions

QCA6595AU: 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

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

WCD9370: All versions

WCD9375: All versions

WCD9380: All versions

WCD9385: All versions

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

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.