# CVE-2019-1214: Microsoft Windows Privilege Common Log File System (CLFS) Escalation Vulnerability

- Exploited (CISA KEV): yes, added 2021-11-03
- Published: 2019-09-11
- CVSS: 7.8 HIGH (v3.1)
- EPSS: 1.4% (73th percentile)

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory, aka 'Windows Common Log File System Driver Elevation of Privilege Vulnerability'.

## 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-2019-1214 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2019-1214