EUVD-2026-73464
GHSA-fcfr-gxhh-h7cx
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local low-privilege access sufficient to reach WOF driver; read-only OOB yields confidentiality impact only, no integrity or availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows Overlay Filter (WOF) kernel driver allows a locally authenticated low-privilege attacker to disclose kernel memory contents across virtually all supported Windows desktop and server releases, from Windows Server 2012 R2 through Windows 11 26H1 and Windows Server 2025. The flaw (CWE-125) requires no user interaction and carries high confidentiality impact, making it a viable KASLR-bypass or sensitive-data-leak primitive in a multi-stage local privilege escalation chain. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an attacker to have already obtained low-privilege code execution on the target machine (PR:L) - this is not remotely triggerable without a prior foothold. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 5.5 Medium correctly reflects a local-only, no-integrity-impact information disclosure. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patches distributed through Windows Update for each affected OS version: Windows Server 2012 R2 → build 6.3.9600.23397; Windows Server 2016 / Windows 10 1607 → 10.0.14393.9512; Windows Server 2019 / Windows 10 1809 → 10.0.17763.9245; Windows Server 2022 → 10.0.20348.5622; Windows 10 21H2 → 10.0.19044.7725; Windows 10 22H2 → 10.0.19045.7725; Windows 11 23H2 → 10.0.22631.7582; Windows 11 24H2 and Server 2025 → 10.0.26100.9445 (desktop) / 10.0.26100.33438 (server); Windows 11 25H2 → 10.0.26200.9445; Windows 11 26H1 → 10.0.28000.2954. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Information Disclosure
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External POC / Exploit Code
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