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CVE-2024-49039

Microsoft Windows Task Scheduler Privilege Escalation

8.8 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 14.2%
  1. Published12 Nov 2024
  2. Added to CISA KEV12 Nov 2024
  3. Remediation due3 Dec 2024
Actively exploited (CISA KEV)

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.

Added to KEV: 12 Nov 2024Federal remediation due: 3 Dec 2024Used in ransomware

Description

Windows Task Scheduler Elevation of Privilege Vulnerability

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.20826
Microsoft Windows 10 1607< 10.0.14393.7515
Microsoft Windows 10 1809< 10.0.17763.6532
Microsoft Windows 10 21h2< 10.0.19044.5131
Microsoft Windows 10 22h2< 10.0.19045.5131
Microsoft Windows 11 22h2< 10.0.22621.4460
Microsoft Windows 11 23h2< 10.0.22631.4460
Microsoft Windows 11 24h2< 10.0.26100.2314
Microsoft Windows Server 2016< 10.0.14393.7515
Microsoft Windows Server 2019< 10.0.17763.6532
Microsoft Windows Server 2022< 10.0.20348.2849
Microsoft Windows Server 2022 23h2< 10.0.25398.1251
Microsoft Windows Server 2025< 10.0.26100.2314

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.20826
Microsoft Windows 10 1607≥ 10.0.14393.7515
Microsoft Windows 10 1809≥ 10.0.17763.6532
Microsoft Windows 10 21h2≥ 10.0.19044.5131
Microsoft Windows 10 22h2≥ 10.0.19045.5131
Microsoft Windows 11 22h2≥ 10.0.22621.4460
Microsoft Windows 11 23h2≥ 10.0.22631.4460
Microsoft Windows 11 24h2≥ 10.0.26100.2314
Microsoft Windows Server 2016≥ 10.0.14393.7515
Microsoft Windows Server 2019≥ 10.0.17763.6532

References

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Frequently asked

Is CVE-2024-49039 being actively exploited?

Yes. CVE-2024-49039 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 12 Nov 2024. It has been used in ransomware campaigns.

How severe is CVE-2024-49039?

CVE-2024-49039 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 14.2% probability of exploitation.

Which products are affected by CVE-2024-49039?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, and 8 more.

How do I fix CVE-2024-49039?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20826, Microsoft Windows 10 1607 10.0.14393.7515, Microsoft Windows 10 1809 10.0.17763.6532 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-49039 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.