CVE-2024-49039: Windows Task Scheduler Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 8.8)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Actively Exploited
Exploitation Likelihood
Detected
Patch Tuesday
2024-Nov
Released
2024-11-12
Last Updated
2024-11-14
EPSS Score
63.67% (percentile: 98.4%)
CISA KEV
Listed — due 2024-12-03

FAQ

How could an attacker exploit this vulnerability? To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application on the target system exploit the vulnerability to elevate their privileges to a Medium Integrity Level. According to the CVSS metric, successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability? In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment. What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could execute RPC functions that are restricted to privileged accounts only.

Known Exploits (2)

  • Microsoft Windows Task Scheduler Privilege Escalation Vulnerability — added 2024-12-16T13:25:56Z
  • Microsoft Windows Task Scheduler Privilege Escalation Vulnerability — added 2024-11-19T08:57:18Z

Detection & Weaponization (1 sources)

Maturity: Exploit

  • GitHub PoC: 1 repositories

Affected Products (27)

Windows

  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows Server 2022, 23H2 Edition (Server Core installation)
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)

Security Updates (10)

Acknowledgments

Anonymous, Vlad Stolyarov and Bahare Sabouri of Google's Threat Analysis Group, Mozilla Security Team

Revision History

  • 2024-11-12: Information published.
  • 2024-11-14: Added acknowledgements. This is an informational change only.