Local system crash via oversized IOCTL read
Published May 8, 2026 · Updated May 8, 2026
Out-of-bounds read in the ASUS System Control Interface IOCTL handler through V3.1.59.1 allows local users to crash Windows. The handler accepts a caller-controlled read size that can exceed its buffer, causing an out-of-bounds kernel-memory read. Low-privilege local access is required; successful exploitation interrupts the endpoint with a BSOD, without reported data disclosure or modification.
Summary
What happened
Out-of-bounds read in the ASUS System Control Interface IOCTL handler through V3.1.59.1 allows local users to crash Windows. The handler accepts a caller-controlled read size that can exceed its buffer, causing an out-of-bounds kernel-memory read. Low-privilege local access is required; successful exploitation interrupts the endpoint with a BSOD, without reported data disclosure or modification.
The record
- CVE
- CVE-2026-3508
- Published
- May 8, 2026
- Updated
- May 8, 2026
- Vendor
- ASUSTeK Computer Inc.
- Product
- ASUS System Control Interface
- Classifications
- CWE-125, CAPEC-540, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 8, 2026CVE publishedPublication date reported by the CVE source.
- May 8, 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=0 <=V3.1.59.1
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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