Improper input validation in Qualcomm products - CVE-2025-21477

Vulnerability identifier: #VU114613

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-21477

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in Modem. A remote attacker can perform a denial of service (DoS) attack.

Snapdragon 8+ Gen 2 Mobile Platform
Snapdragon X70 Modem-RF System
Snapdragon X65 5G Modem-RF System
Snapdragon X62 5G Modem-RF System
Snapdragon X55 5G Modem-RF System
Snapdragon Auto 5G Modem-RF Gen 2
Snapdragon Auto 5G Modem-RF
Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
Snapdragon 888 5G Mobile Platform
Snapdragon 870 5G Mobile Platform (SM8250-AC)
Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
Snapdragon 865 5G Mobile Platform
Snapdragon X72 5G Modem-RF System
Snapdragon 8+ Gen 1 Mobile Platform
Snapdragon 8 Gen 3 Mobile Platform
Snapdragon 8 Gen 2 Mobile Platform
Snapdragon 8 Gen 1 Mobile Platform
Snapdragon 7c+ Gen 3 Compute
Snapdragon 782G Mobile Platform (SM7325-AF)
Snapdragon 780G 5G Mobile Platform
Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
Snapdragon 778G 5G Mobile Platform
Snapdragon 768G 5G Mobile Platform (SM7250-AC)
WCN3988
WSA8845H
WSA8845
WSA8840
WSA8835
WSA8830
WSA8815
WSA8810
WCN6755
WCN6740
Snapdragon 765G 5G Mobile Platform (SM7250-AB)
WCD9395
WCD9390
WCD9385
WCD9380
WCD9375
WCD9370
WCD9360
WCD9341
WCD9340
Snapdragon X75 5G Modem-RF System
QCA6696
QCN9024
QCN6274
QCN6224
QCN6024
QCM6490
QCM5430
QCC710
QCA8337
QCA8081
QCA6698AQ
QCS5430
QCA6595AU
QCA6584AU
QCA6574A
QCA6391
FastConnect 7800
FastConnect 6900
FastConnect 6800
FastConnect 6700
FastConnect 6200
AR8035
SM7675
Snapdragon 765 5G Mobile Platform (SM7250-AA)
Snapdragon 695 5G Mobile Platform
Snapdragon 690 5G Mobile Platform
Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
Snapdragon 480 5G Mobile Platform
Snapdragon 4 Gen 1 Mobile Platform
SM8635P
SM8635
SM8550P
SM7675P
315 5G IoT Modem
SM7325P
SM7250P
SG8275P
SDX57M
Qualcomm Video Collaboration VC3 Platform
QFW7124
QFW7114
QCS8550
QCS6490
WSA8832
SDX55
Google Android

Install security update from vendor's website.

Google Android - addressed in versions 13 2025-09-05, 14 2025-09-05, 15 2025-09-05, 16 2025-09-05

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

• Multiple vulnerabilities in Qualcomm chipsets (August 2025)
• Multiple vulnerabilities in Google Android