Local privilege escalation via Hyper-V heap overflow
Published Mar 11, 2025 · Updated Feb 13, 2026
Heap-based buffer overflow in Windows Hyper-V allows local users with low privileges to gain higher privileges on affected Windows hosts. Microsoft identifies an out-of-bounds read but has not disclosed the affected code path, input source, or faulty bounds operation. Exploitation requires local authenticated access and can compromise data and service availability at the elevated privilege level.
Summary
What happened
Heap-based buffer overflow in Windows Hyper-V allows local users with low privileges to gain higher privileges on affected Windows hosts. Microsoft identifies an out-of-bounds read but has not disclosed the affected code path, input source, or faulty bounds operation. Exploitation requires local authenticated access and can compromise data and service availability at the elevated privilege level.
The record
- CVE
- CVE-2025-24048
- Published
- Mar 11, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, CWE-125, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 11, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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=10.0.17763.0 <10.0.17763.7009
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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