Buffer over-read in Qualcomm products - CVE-2025-21484

Vulnerability identifier: #VU114638

CSH Severity: High

CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-21484

CWE-ID: CWE-126

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to read and manipulate data.

The vulnerability exists due to improper input validation in Data Network Stack & Connectivity. A remote attacker can read and manipulate data.

Snapdragon 820 Automotive Platform
Snapdragon 720G Mobile Platform
Snapdragon 730 Mobile Platform (SM7150-AA)
Snapdragon 730G Mobile Platform (SM7150-AB)
Snapdragon 732G Mobile Platform (SM7150-AC)
Snapdragon 750G 5G Mobile Platform
Snapdragon 765 5G Mobile Platform (SM7250-AA)
Snapdragon 765G 5G Mobile Platform (SM7250-AB)
Snapdragon 768G 5G Mobile Platform (SM7250-AC)
Snapdragon 8 Gen 3 Mobile Platform
Snapdragon 8+ Gen 1 Mobile Platform
Snapdragon 695 5G Mobile Platform
Snapdragon 835 Mobile PC Platform
Snapdragon 845 Mobile Platform
Snapdragon 855 Mobile Platform
Snapdragon 855+/860 Mobile Platform (SM8150-AC)
Snapdragon 865 5G Mobile Platform
Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
Snapdragon 870 5G Mobile Platform (SM8250-AC)
Snapdragon W5+ Gen 1 Wearable Platform
Snapdragon X50 5G Modem-RF System
Snapdragon X55 5G Modem-RF System
Snapdragon 480 5G Mobile Platform
SM8850
SM8850P
Smart Audio 200 Platform
Smart Display 200 Platform (APQ5053-AA)
Snapdragon 208 Processor
Snapdragon 210 Processor
Snapdragon 212 Mobile Platform
Snapdragon 4 Gen 1 Mobile Platform
Snapdragon 429 Mobile Platform
Snapdragon 460 Mobile Platform
Snapdragon XR1 Platform
Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
Snapdragon 625 Mobile Platform
Snapdragon 626 Mobile Platform
Snapdragon 660 Mobile Platform
Snapdragon 662 Mobile Platform
Snapdragon 675 Mobile Platform
Snapdragon 678 Mobile Platform (SM6150-AC)
Snapdragon 680 4G Mobile Platform
Snapdragon 685 4G Mobile Platform (SM6225-AD)
Snapdragon 690 5G Mobile Platform
WCN7861
WCN3615
WCN3620
WCN3660B
WCN3680B
WCN3910
WCN3950
WCN3980
WCN3988
WCN3990
WCN7860
WCN3610
WCN7880
WCN7881
WSA8810
WSA8815
WSA8830
WSA8835
WSA8840
WSA8845
WSA8845H
WCD9326
Snapdragon XR2 5G Platform
Snapdragon XR2+ Gen 1 Platform
SW5100
SW5100P
SXR1120
Vision Intelligence 100 Platform (APQ8053-AA)
Vision Intelligence 200 Platform (APQ8053-AC)
Vision Intelligence 300 Platform
Vision Intelligence 400 Platform
SM8750P
WCD9335
WCD9340
WCD9341
WCD9370
WCD9375
WCD9380
WCD9385
WCD9390
WCD9395
QCA6688AQ
QCA6436
QCA6564
QCA6564A
QCA6564AU
QCA6574
QCA6574A
QCA6595
QCA6595AU
QCA6678AQ
QCA6430
QCA6696
QCA6698AQ
QCA6698AU
QCA6797AQ
QCM4490
QCM5430
QCM6125
QCM6490
QCS410
QCS4490
QAM8255P
AQT1000
FastConnect 6200
FastConnect 6700
FastConnect 6800
FastConnect 6900
FastConnect 7800
MSM8108
MSM8209
MSM8608
QCS5430
QAM8295P
QAM8650P
QAM8775P
QCA6310
QCA6320
QCA6335
QCA6391
QCA6420
QCA6426
SA8255P
SA8295P
SA8650P
SA8770P
SA8775P
SD626
SD660
SA8195P
SD865 5G
SG4150P
SM4125
SM6250
SM6370
SM7250P
SM8750
SA6145P
QCS610
QCS6125
QCS6490
Qualcomm 205 Mobile Platform
Qualcomm 215 Mobile Platform
Qualcomm Video Collaboration VC1 Platform
Qualcomm Video Collaboration VC3 Platform
Robotics RB3 Platform
SA4150P
SA4155P
APQ8064AU
SA6150P
SA6155
SA7255P
SA7775P
SA8145P
SA8150P
SA8155
SA8155P
WSA8832
SXR2130
QCA6574AU
MSM8996AU
SD835
SA8620P
SA9000P
SD730
SD855
SDM429W
SDX55
SA6155P
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/september-2025-bulletin.html

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