#VU107114 Use After Free in Qualcomm products - CVE-2025-21436

Vulnerability identifier: #VU107114

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-2025-21436

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FastConnect 7800
Mobile applications / Mobile firmware & hardware
QMP1000
Mobile applications / Mobile firmware & hardware
SM8735
Mobile applications / Mobile firmware & hardware
SM8750
Mobile applications / Mobile firmware & hardware
SM8750P
Mobile applications / Mobile firmware & hardware
Snapdragon 8 Gen 3 Mobile Platform
Mobile applications / Mobile firmware & hardware
Snapdragon W5+ Gen 1 Wearable Platform
Mobile applications / Mobile firmware & hardware
SW5100
Mobile applications / Mobile firmware & hardware
SW5100P
Mobile applications / Mobile firmware & hardware
SXR2330P
Mobile applications / Mobile firmware & hardware
WCD9378
Mobile applications / Mobile firmware & hardware
WCD9380
Mobile applications / Mobile firmware & hardware
WCD9390
Mobile applications / Mobile firmware & hardware
WCD9395
Mobile applications / Mobile firmware & hardware
WCN7750
Mobile applications / Mobile firmware & hardware
WCN7860
Mobile applications / Mobile firmware & hardware
WCN7861
Mobile applications / Mobile firmware & hardware
WCN7880
Mobile applications / Mobile firmware & hardware
WCN7881
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
WSA8832
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 DSP Service. A local application can execute arbitrary code.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

FastConnect 7800: All versions

QMP1000: All versions

SM8735: All versions

SM8750: All versions

SM8750P: All versions

Snapdragon 8 Gen 3 Mobile Platform: All versions

Snapdragon W5+ Gen 1 Wearable Platform: All versions

SW5100: All versions

SW5100P: All versions

SXR2330P: All versions

WCD9378: All versions

WCD9380: All versions

WCD9390: All versions

WCD9395: All versions

WCN7750: All versions

WCN7860: All versions

WCN7861: All versions

WCN7880: All versions

WCN7881: All versions

WSA8830: All versions

WSA8832: 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.