CVE-2024-49039MicrosoftOperating systemsNovember 12, 2024

Microsoft Windows Task Scheduler Privilege Escalation Vulnerability

High 8.8Actively exploitedUsed by ransomware

Description

Microsoft Windows Task Scheduler contains a privilege escalation vulnerability that can allow an attacker-provided, local application to escalate privileges outside of its AppContainer, and access privileged RPC functions.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Details

Vendor
Microsoft
Product
Windows
CVE
CVE-2024-49039
Affected versions
Windows Server 2025 10.0: from 10.0.26100.0 to 10.0.26100.2314 (excluded) — fixed in 10.0.26100.2314
Windows Server 2025 (Server Core installation) 10.0: from 10.0.26100.0 to 10.0.26100.2314 (excluded) — fixed in 10.0.26100.2314
Windows 10 Version 1809 10.0: from 10.0.17763.0 to 10.0.17763.6532 (excluded) — fixed in 10.0.17763.6532
Windows Server 2019 10.0: from 10.0.17763.0 to 10.0.17763.6532 (excluded) — fixed in 10.0.17763.6532
Windows Server 2019 (Server Core installation) 10.0: from 10.0.17763.0 to 10.0.17763.6532 (excluded) — fixed in 10.0.17763.6532
Windows Server 2022 10.0: from 10.0.20348.0 to 10.0.20348.2849 (excluded) — fixed in 10.0.20348.2849
Windows 10 Version 21H2 10.0: from 10.0.19043.0 to 10.0.19044.5131 (excluded) — fixed in 10.0.19044.5131
Windows 11 version 22H2 10.0: from 10.0.22621.0 to 10.0.22621.4460 (excluded) — fixed in 10.0.22621.4460
Windows 10 Version 22H2 10.0: from 10.0.19045.0 to 10.0.19045.5131 (excluded) — fixed in 10.0.19045.5131
Windows 11 version 22H3 10.0: from 10.0.22631.0 to 10.0.22631.4460 (excluded) — fixed in 10.0.22631.4460
Windows 11 Version 23H2 10.0: from 10.0.22631.0 to 10.0.22631.4460 (excluded) — fixed in 10.0.22631.4460
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0: from 10.0.25398.0 to 10.0.25398.1251 (excluded) — fixed in 10.0.25398.1251
Windows 11 Version 24H2 10.0: from 10.0.26100.0 to 10.0.26100.2314 (excluded) — fixed in 10.0.26100.2314
Windows 10 Version 1507 10.0: from 10.0.10240.0 to 10.0.10240.20826 (excluded) — fixed in 10.0.10240.20826
Windows 10 Version 1607 10.0: from 10.0.14393.0 to 10.0.14393.7515 (excluded) — fixed in 10.0.14393.7515
Windows Server 2016 10.0: from 10.0.14393.0 to 10.0.14393.7515 (excluded) — fixed in 10.0.14393.7515
Windows Server 2016 (Server Core installation) 10.0: from 10.0.14393.0 to 10.0.14393.7515 (excluded) — fixed in 10.0.14393.7515 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
8.8
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
December 3, 2024 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
November 12, 2024

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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