# CVE-2019-1069: Microsoft Task Scheduler Privilege Escalation Vulnerability

- Exploited (CISA KEV): yes, added 2022-03-15, known ransomware use
- Published: 2019-06-12
- CVSS: 7.8 HIGH (v3.1)
- EPSS: 6.1% (93th percentile)
- CWE: CWE-59

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system.
To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system.
The security update addresses the vulnerability by correctly validating file operations.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | Before feed history | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Before feed history | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2019-1069 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2019-1069