Local information disclosure via audio buffer over-read
Published Sep 24, 2025 · Updated Sep 24, 2025
Buffer over-read in Qualcomm Snapdragon audio firmware allows local users to disclose information through a calibration-data request. While user space invokes calibration data to update the firmware size, the audio component reads beyond the intended buffer; Qualcomm has not disclosed a more specific function or validation error. Low-privileged local access is required, and successful exploitation exposes memory contents without enabling data modification.
Summary
What happened
Buffer over-read in Qualcomm Snapdragon audio firmware allows local users to disclose information through a calibration-data request. While user space invokes calibration data to update the firmware size, the audio component reads beyond the intended buffer; Qualcomm has not disclosed a more specific function or validation error. Low-privileged local access is required, and successful exploitation exposes memory contents without enabling data modification.
The record
- CVE
- CVE-2025-27030
- Published
- Sep 24, 2025
- Updated
- Sep 24, 2025
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-126
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 24, 2025CVE publishedPublication date reported by the CVE source.
- Sep 24, 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=C-V2X 9150
- Affected versionversion=QAM8295P
- Affected versionversion=QCA6574AU
- Affected versionversion=QCA6584AU
- Affected versionversion=QCA6696
- Affected versionversion=QCA6698AQ
- Affected versionversion=QCA9367
- Affected versionversion=QCA9377
- Affected versionversion=QCN9074
- Affected versionversion=QCS410
- Affected versionversion=QCS610
- Affected versionversion=QSM8250
- 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=SA8530P
- Affected versionversion=SA8540P
- Affected versionversion=SA9000P
- Affected versionversion=SDX55
- Affected versionversion=Snapdragon Auto 5G Modem-RF
- Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
- Affected versionversion=SW5100
- Affected versionversion=SW5100P
- Affected versionversion=WCD9341
- Affected versionversion=WCD9370
- 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
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Technologies
Your stack
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Your stack
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