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CVE-2026-118279ImportantEoPLocal

Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability

MSRC advisory NVD CVE.org

Assessment

Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.

Severity
Important
CVSS base score
8.8
Impact
Elevation of Privilege
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Less Likely
Publicly disclosed
No (MSRC assessment)
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Windows Advanced Rasterization Platform
Weakness
CWE-122: Heap-based Buffer Overflow
Issued by
Microsoft
Published
10 Nov 2026 · November 2026
Last revised
10 Nov 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
LocalAV:L
Attack complexity
LowAC:L
Privileges required
LowPR:L
User interaction
NoneUI:N
Scope
ChangedS:C
Confidentiality
HighC:H
Integrity
HighI:H
Availability
HighA:H

Updates that fix it

7 KBs
KBTypeRestartApplies toKnown issuesOther CVEs
KB5126646 Security UpdateRequiredWindows Server 2025, Windows Server 2025 (Server Core installation)ResolvedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126646
KB5126651 Security UpdateRequiredWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 and 1 moreResolvedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126651
KB5126653 Security UpdateRequiredWindows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based SystemsNone listedAll CVEs in KB5126653
KB5126655 Security UpdateRequiredWindows Server 2022, Windows Server 2022 (Server Core installation)ResolvedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126655
KB5126657 Security UpdateRequiredWindows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems and 3 moreNone listedAll CVEs in KB5126657
KB5127646 Security UpdateRequiredWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based SystemsNone listedAll CVEs in KB5127646
KB5127648 Security UpdateRequiredWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems and 3 moreNone listedAll CVEs in KB5127648

Affected products

ESU, Windows
24 affected products
Page history

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Cite this version
Field-level log (0)

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No retained field changes for this selection.

Explore global source statements, affected packages and advisory history for CVE-2026-118279. The catalog has a separate collection scope from Microsoft release records.

Explicit identifiers and source references

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-118279 · Microsoft / collected KEV context

cve-program · CVE-2026-118279

Related operational evidence

Explicit CVE identifiers
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

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