# CVE-2023-38204: Bypass APSB23-41 (CVE-2023-38203) - Pre-Auth RCE ColdFusion 2021 Update 8

- Exploited (CISA KEV): no
- Published: 2023-09-14
- CVSS: 9.8 CRITICAL (v3.1)
- EPSS: 66.9% (99th percentile)
- CWE: CWE-502

Adobe ColdFusion versions 2018u18 (and earlier), 2021u8 (and earlier) and 2023u2 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in Arbitrary code execution. Exploitation of this issue does not require user interaction.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-01-16 | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-01-16 · updated · rule 200103326
  > Updated: signature 200103326 "Adobe ColdFusion WDDX Remote Code Execution (1)" (Command Execution, risk High), systems: Macromedia ColdFusion. References: CVE-2023-38204.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2024-05-21 · updated · rule 200103326
  > Updated: signature 200103326 "Adobe ColdFusion WDDX Remote Code Execution (1)" (Command Execution, risk High), systems: Macromedia ColdFusion. References: CVE-2023-38204.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"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-2023-38204 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-38204