Local information disclosure via unchecked IOCTL buffer
Published May 4, 2026 · Updated May 4, 2026
Buffer over-read in Qualcomm Snapdragon DSP services allows local users to disclose information through a crafted IOCTL request. The IOCTL callback handlers process a supplied buffer without first verifying its size, permitting a read beyond the intended boundary. Low-privileged local access is required; the read can expose adjacent memory and cause a limited service interruption.
Summary
What happened
Buffer over-read in Qualcomm Snapdragon DSP services allows local users to disclose information through a crafted IOCTL request. The IOCTL callback handlers process a supplied buffer without first verifying its size, permitting a read beyond the intended boundary. Low-privileged local access is required; the read can expose adjacent memory and cause a limited service interruption.
The record
- CVE
- CVE-2025-47406
- Published
- May 4, 2026
- Updated
- May 4, 2026
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-126, CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 4, 2026CVE publishedPublication date reported by the CVE source.
- May 4, 2026Record 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=Cologne
- Affected versionversion=FastConnect 6700
- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=IQX5121
- Affected versionversion=IQX7181
- Affected versionversion=QCA0000
- Affected versionversion=QCM5430
- Affected versionversion=QCM6490
- Affected versionversion=Qualcomm Video Collaboration VC3 Platform
- Affected versionversion=SC8380XP
- Affected versionversion=Snapdragon 7c+ Gen 3 Compute
- Affected versionversion=Snapdragon 8cx Gen 3 Compute Platform
- Affected versionversion=WCD9370
- Affected versionversion=WCD9375
- Affected versionversion=WCD9378C
- Affected versionversion=WCD9380
- Affected versionversion=WCD9385
- Affected versionversion=WSA8830
- Affected versionversion=WSA8835
- Affected versionversion=WSA8840
- Affected versionversion=WSA8845
- Affected versionversion=WSA8845H
- Affected versionversion=X2000077
- Affected versionversion=X2000086
- Affected versionversion=X2000090
- Affected versionversion=X2000092
- Affected versionversion=X2000094
- Affected versionversion=XG101002
- Affected versionversion=XG101032
- Affected versionversion=XG101039
What conditions does exploitation require?
What is affected?
Published CVSS scores
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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.
Public exploit references
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Technologies
Your stack
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Your stack
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