Local privilege escalation via untrusted pointer dereference
Published Sep 8, 2026 · Updated Sep 9, 2026
Privilege escalation in Microsoft Windows VBS Enclave allows local users to gain elevated privileges through an untrusted pointer dereference. Microsoft identifies the locus only as VBS Enclave and does not disclose the affected function or whether the pointer is read, written, or called. A local account with low privileges is required; successful exploitation elevates privileges on an affected Windows host.
Summary
What happened
Privilege escalation in Microsoft Windows VBS Enclave allows local users to gain elevated privileges through an untrusted pointer dereference. Microsoft identifies the locus only as VBS Enclave and does not disclose the affected function or whether the pointer is read, written, or called. A local account with low privileges is required; successful exploitation elevates privileges on an affected Windows host.
The record
- CVE
- CVE-2026-83498
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-822, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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=10.0.26100.0 <10.0.26100.33438
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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