Microsoft Task Scheduler Privilege Escalation Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

HIGH

7.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Exploitation Likelihood

30.46 %

Predictive Probability

Percentile Rank

96.6 th

Documented as more likely to be exploited than 96.6% of known CVEs.

Detection Date

Mar 15, 2022

Remediation Due

Apr 05, 2022

CISA Catalog Active

Threat Analysis

A privilege escalation vulnerability exists in the way the Task Scheduler Service validates certain file operations.

Apply updates per vendor instructions.

Vendor Identity

Microsoft

Affected Product

Task Scheduler

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-59

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2019-1069