Local memory corruption via BTHOST use-after-free
Published Aug 6, 2025 · Updated Aug 6, 2025
Use-after-free in Qualcomm Snapdragon BTHOST allows local users to corrupt memory while processing A2DP sink queue commands. Qualcomm has not disclosed the freed object, lifetime error, or command sequence that causes BTHOST to reuse released memory from the A2DP sink command queue. Low-privileged local access is required and no user interaction is needed; successful exploitation can compromise data and interrupt the device.
Summary
What happened
Use-after-free in Qualcomm Snapdragon BTHOST allows local users to corrupt memory while processing A2DP sink queue commands. Qualcomm has not disclosed the freed object, lifetime error, or command sequence that causes BTHOST to reuse released memory from the A2DP sink command queue. Low-privileged local access is required and no user interaction is needed; successful exploitation can compromise data and interrupt the device.
The record
- CVE
- CVE-2025-21474
- Published
- Aug 6, 2025
- Updated
- Aug 6, 2025
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-416
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 6, 2025CVE publishedPublication date reported by the CVE source.
- Aug 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=FastConnect 6800
- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=QAM8295P
- Affected versionversion=QCA6391
- Affected versionversion=QCA6426
- Affected versionversion=QCA6436
- Affected versionversion=QCA6574AU
- Affected versionversion=QCA6696
- Affected versionversion=QCN9074
- Affected versionversion=QCS410
- Affected versionversion=QCS610
- Affected versionversion=Qualcomm Video Collaboration VC1 Platform
- Affected versionversion=Qualcomm Video Collaboration VC3 Platform
- Affected versionversion=SA6145P
- Affected versionversion=SA6150P
- Affected versionversion=SA6155P
- Affected versionversion=SA8145P
- Affected versionversion=SA8150P
- Affected versionversion=SA8155P
- Affected versionversion=SA8195P
- Affected versionversion=SA8295P
- Affected versionversion=SD865 5G
- Affected versionversion=Snapdragon 865 5G Mobile Platform
- Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
- Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
- Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
- Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
- Affected versionversion=Snapdragon X55 5G Modem-RF System
- Affected versionversion=Snapdragon XR2 5G Platform
- Affected versionversion=SW5100
- Affected versionversion=SW5100P
- Affected versionversion=SXR2130
- Affected versionversion=WCD9341
- Affected versionversion=WCD9370
- Affected versionversion=WCD9380
- Affected versionversion=WCN3660B
- Affected versionversion=WCN3680B
- Affected versionversion=WCN3950
- Affected versionversion=WCN3980
- Affected versionversion=WCN3988
- Affected versionversion=WSA8810
- Affected versionversion=WSA8815
- Affected versionversion=WSA8830
- Affected versionversion=WSA8835
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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