WinBioSVC crash via undersized identity buffer
Published Nov 17, 2025 · Updated Nov 17, 2025
Out-of-bounds write in Dell ControlVault3 before 5.15.14.19 and ControlVault3 Plus before 6.2.36.47 allows local users to crash WinBioSVC. StorageAdapterControlUnit writes an 80-byte identity structure into a caller-sized receive buffer before verifying that the buffer is large enough. Any low-privileged Windows user can reach the unprivileged WinBioControlUnit path; a 4-to-79-byte buffer causes up to 75 bytes of overwrite, while targeted corruption requires control of stored identity data.
Summary
What happened
Out-of-bounds write in Dell ControlVault3 before 5.15.14.19 and ControlVault3 Plus before 6.2.36.47 allows local users to crash WinBioSVC. StorageAdapterControlUnit writes an 80-byte identity structure into a caller-sized receive buffer before verifying that the buffer is large enough. Any low-privileged Windows user can reach the unprivileged WinBioControlUnit path; a 4-to-79-byte buffer causes up to 75 bytes of overwrite, while targeted corruption requires control of stored identity data.
The record
- CVE
- CVE-2025-36460
- Published
- Nov 17, 2025
- Updated
- Nov 17, 2025
- Vendor
- Dell
- Product
- ControlVault3 Plus
- Classifications
- CWE-805, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 17, 2025CVE publishedPublication date reported by the CVE source.
- Nov 17, 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?
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- Affected versionversion=0 <6.2.36.47
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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