# CVE-2023-34990: Fortinet FortiWLM

- Exploited (CISA KEV): no
- Published: 2024-12-18
- CVSS: 9.6 CRITICAL (v3.1)
- EPSS: 25.0% (98th percentile)
- CWE: CWE-23

A relative path traversal in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specially crafted web requests.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-01-13 | 26 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-01-13 · new · rule 67ac639a845c482d948b465b2233da1f · default Block
  > FortiWLM - Remote Code Execution - CVE:CVE-2023-48782, CVE:CVE-2023-34993, CVE:CVE-2023-34990. Previous action: Log. New action: Block. New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-01-13-waf-release/

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: partial (1 of 2 requests blocked), template CVE-2023-34990, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: partial (1 of 2 requests blocked), template CVE-2023-34990, 2026-11-02

"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-2023-34990 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-34990