EUVD-2026-73025
GHSA-4gv9-22gm-7ww8
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local low-privilege access triggers kernel OOB read; only confidentiality impacted, no integrity or availability consequence.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows Win32K kernel graphics subsystem exposes kernel memory to locally authenticated attackers across a broad range of Windows client and server releases. The vulnerability (CWE-125) permits an attacker with low-privilege local access to disclose high-confidence memory contents - a class of primitive frequently chained with privilege-escalation exploits to defeat ASLR or leak kernel pointers. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated user with at minimum standard (low-privilege) user rights - consistent with CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.1 scores this at 5.5 (Medium), reflecting AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - local, low-privilege exploitation with high confidentiality impact but no integrity or availability consequence. … 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 Microsoft security update corresponding to your Windows build: Windows 11 26H1 → 10.0.28000.2954 or later; Windows 11 24H2/25H2 → 10.0.26100.9445 / 10.0.26200.9445 or later; Windows 11 23H2 → 10.0.22631.7582 or later; Windows 10 22H2/21H2 → 10.0.19045.7725 / 10.0.19044.7725 or later; Windows 10 1809 → 10.0.17763.9245; Windows 10 1607 → 10.0.14393.9512; Server 2025 → 10.0.26100.33438; Server 2022 → 10.0.20348.5622; Server 2019 → 10.0.17763.9245; Server 2016 → 10.0.14393.9512; Server 2012 R2 → 6.3.9600.23397; Server 2012 → 6.2.9200.26349. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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