Vulnerability · NVD
CVE-2026-49798
CVE-2026-49798 : critical severity (CVSS 9.3). No tracked catalog app is linked to this CVE.
- Severity (CVSS)
- 9.3
- Exploitation
- 0.4 %
- Tracked apps
- 0
- Still exposed
- 0
NVD scale
EPSS, predicted over 30 days
Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
Attack vector : Local
No privileges required
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
0.36%
exploit very unlikely
percentile 27.5%
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Server 2025 Fixed in 10.0.26100.33158
- Windows Server 2022 Fixed in 10.0.20348.5386
- Windows Server 2019 Fixed in 10.0.17763.9020
- Windows Server 2016 Fixed in 10.0.14393.9339
- Windows 11 26H1 · 2026-H1 Fixed in 10.0.28000.2525
- Windows 11 25H2 · 2025-H2 Fixed in 10.0.26200.8875
- Windows 11 24H2 · 2024-H2 Fixed in 10.0.26100.8875
- Windows 10 22H2 · 2022-H2 Fixed in 10.0.19045.7548
- Windows 10 21H2 · 2021-H2 Fixed in 10.0.19044.7548
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.9020
- Windows 10 1607 · 2016-07 Fixed in 10.0.14393.9339
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