High8.8Microsoft Server Exploited CISA KEV

High [CVE-2024-49039] Windows Task Scheduler Elevation of Privilege Vulnerability

This high-severity Microsoft Server advisory covers CVE-2024-49039 affecting Windows Server 2025 (Server Core installation), Windows Server 2019 (Server Core installation), Windows Server 2022, 23H2 Edition (Server Core installation).

CVE-2024-49039 Published Nov 12, 2024Updated by vendor Aug 4, 2026

CVE-2024-49039

Affected products & platforms

Microsoft ServerWindows Server

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Summary

Windows Task Scheduler Elevation of Privilege Vulnerability

Affected products named by the advisory: Windows Server 2025; Windows Server 2025 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 4 more.

Affected products named by the advisory: Windows Server 2022, 23H2 Edition (Server Core installation); Windows Server 2016 (Server Core installation).

CISA Known Exploited Vulnerability

Listed:: Nov 12, 2024 · federal remediation due Dec 3, 2024
Required action:: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware use:: Known

KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.

Affected versions

Windows Server 2025 10.0.26100.0 before 10.0.26100.2314
Windows Server 2025 (Server Core installation) 10.0.26100.0 before 10.0.26100.2314
Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.6532
Windows Server 2019 10.0.17763.0 before 10.0.17763.6532
Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.6532
Windows Server 2022 10.0.20348.0 before 10.0.20348.2849
Windows 10 Version 21H2 10.0.19043.0 before 10.0.19044.5131
Windows 11 version 22H2 10.0.22621.0 before 10.0.22621.4460
Windows 10 Version 22H2 10.0.19045.0 before 10.0.19045.5131
Windows 11 version 22H3 10.0.22631.0 before 10.0.22631.4460
Windows 11 Version 23H2 10.0.22631.0 before 10.0.22631.4460
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 before 10.0.25398.1251

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions

10.0.26100.2314
10.0.17763.6532
10.0.20348.2849
10.0.19044.5131
10.0.22621.4460
10.0.19045.5131
10.0.22631.4460
10.0.25398.1251
10.0.10240.20826
10.0.14393.7515

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation

Upgrade to a fixed release: 10.0.26100.2314, 10.0.17763.6532, 10.0.20348.2849, 10.0.19044.5131, 10.0.22621.4460, 10.0.19045.5131. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Discussion(0)

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