# CVE-2025-6205: Dassault Systèmes DELMIA Apriso Missing Authorization Vulnerability

- Exploited (CISA KEV): yes, added 2025-10-28
- Published: 2025-08-04
- CVSS: 9.1 CRITICAL (v3.1)
- EPSS: 73.7% (99th percentile)
- CWE: CWE-862

A missing authorization vulnerability affecting DELMIA Apriso from Release 2020 through Release 2025 could allow an attacker to gain privileged access to the application.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-11-17 | 105 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-12-03 | 121 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-11-17 · new · rule ec1e2aa190e64e7cb468e16dd256f4bc · default Block
  > DELMIA Apriso - Auth Bypass - CVE:CVE-2025-6205. Previous action: Log. New action: Block. This is a new detection.
  Source: https://developers.cloudflare.com/changelog/post/2025-11-17-waf-release/

### F5

- 2025-12-03 · new · rule 200013137
  > Added: signature 200013137 "DELMIA Apriso Authorization Bypass" (Authentication/Authorization Attacks, risk Medium), systems: Other Web Server. References: CVE-2025-6205.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: blocked (1 of 1 requests blocked), template CVE-2025-6205, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: blocked (1 of 1 requests blocked), template CVE-2025-6205, 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-2025-6205 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-6205