Dashboard / CVE-2026-49798

CVE-2026-49798

CRITICAL
INFO Priority: 0.03 BB Relevance: 54/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: Changed
C: High
I: High
A: High

Description

Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.

Weakness Classification (1)

Affected Software (58)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7548
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7548
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7548
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7548
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.8875
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.8875
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.8875
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.8875
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.2525
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.2525
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9020
Showing 30 of 58 entries

References & Advisories (1)

Bug Bounty Relevance

54 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.36%
Raw Score 0.003640
Percentile 30.1%
Date 2026-10-28

Intelligence Sources

mitre ref →

External Links