known ransomware use

Microsoft Windows Task Scheduler Privilege Escalation Vulnerability

Added to KEV
2024-11-12
Federal due date
2024-12-03
Vendor
Microsoft
Product
Windows
EPSS
98.5th percentile (score 0.650, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2024-49039

CISA short 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.

Required action

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

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.