cbcvebase.
CVE-2024-49039
published 2024-11-12

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

PriorityP188high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
KEVITWEXPLOITRansomware
CISA Known Exploited Vulnerabilitydue 2024-12-03
Exploited in the wild
EPSS
13.72%
96.0th percentile
Windows Task Scheduler Elevation of Privilege Vulnerability

Affected

39 ranges· showing 25
VendorProductVersion rangeFixed in
microsoftwindows_10_1507< 10.0.10240.2082610.0.10240.20826
microsoftwindows_10_1607< 10.0.14393.751510.0.14393.7515
microsoftwindows_10_1809< 10.0.17763.653210.0.17763.6532
microsoftwindows_10_21h2< 10.0.19044.513110.0.19044.5131
microsoftwindows_10_22h2< 10.0.19045.513110.0.19045.5131
microsoftwindows_10_version_1507>= 10.0.10240.0 < 10.0.10240.2082610.0.10240.20826
microsoftwindows_10_version_1607>= 10.0.14393.0 < 10.0.14393.751510.0.14393.7515
microsoftwindows_10_version_1809>= 10.0.17763.0 < 10.0.17763.653210.0.17763.6532
microsoftwindows_10_version_21h2>= 10.0.19043.0 < 10.0.19044.513110.0.19044.5131
microsoftwindows_10_version_22h2>= 10.0.19045.0 < 10.0.19045.513110.0.19045.5131
microsoftwindows_11_22h2< 10.0.22621.446010.0.22621.4460
microsoftwindows_11_23h2< 10.0.22631.446010.0.22631.4460
microsoftwindows_11_24h2< 10.0.26100.231410.0.26100.2314
microsoftwindows_11_version_22h2>= 10.0.22621.0 < 10.0.22621.446010.0.22621.4460
microsoftwindows_11_version_22h3>= 10.0.22631.0 < 10.0.22631.446010.0.22631.4460
microsoftwindows_11_version_23h2>= 10.0.22631.0 < 10.0.22631.446010.0.22631.4460
microsoftwindows_11_version_24h2>= 10.0.26100.0 < 10.0.26100.231410.0.26100.2314
microsoftwindows_server_2016< 10.0.14393.751510.0.14393.7515
microsoftwindows_server_2016>= 10.0.14393.0 < 10.0.14393.751510.0.14393.7515
microsoftwindows_server_2019< 10.0.17763.653210.0.17763.6532
microsoftwindows_server_2019>= 10.0.17763.0 < 10.0.17763.653210.0.17763.6532
microsoftwindows_server_2022< 10.0.20348.284910.0.20348.2849
microsoftwindows_server_2022>= 10.0.20348.0 < 10.0.20348.284910.0.20348.2849
microsoftwindows_server_2022_23h2< 10.0.25398.125110.0.25398.1251
microsoftwindows_server_2025< 10.0.26100.231410.0.26100.2314

Detection & IOCsextracted from sources · hover to see the quote

filenamemain-tor.js
  • CVE-2024-49039 is exploited as part of a two-CVE chain with CVE-2024-9680 (Firefox use-after-free); detect the chain by looking for Firefox/Tor Browser processes spawning unexpected child processes or Task Scheduler privilege escalation to Medium Integrity Level from a low-privilege AppContainer.
  • Hunt for RomCom backdoor deployment following browser exploitation; the infection chain uses a fake/redirect website to serve the exploit and drop the backdoor with no user interaction beyond visiting the page.
  • Tor Browser versions 12 and 13 were specifically targeted alongside Firefox; include these in scope for browser-based exploit detection.
  • CVE-2024-49039 and CVE-2024-43451 were both observed as actively exploited in the wild during the same Microsoft Patch Tuesday cycle (November 2024); correlate detections for both.
  • ·Exploitation requires an authenticated attacker running a specially crafted application; the privilege escalation elevates only to Medium Integrity Level, not SYSTEM — scope the detection accordingly.
  • ·The vulnerability allows escape from a low-privilege AppContainer (e.g., browser sandbox) to access privileged RPC functions — detections scoped only to high-integrity process creation may miss this escalation path.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vulncheck8.8HIGH
cisa8.8HIGH
vendor_msrc8.8HIGH
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