# CVE-2023-44353: ColdFusion WDDX Deserialization Gadgets

- Exploited (CISA KEV): no
- Published: 2023-11-17
- CVSS: 9.8 CRITICAL (v3.1)
- EPSS: 80.2% (100th percentile)
- CWE: CWE-502

Adobe ColdFusion versions 2023.5 (and earlier) and 2021.11 (and earlier) are affected by an 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 | 60 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-01-16 · new · rule 200013070
  > Added: signature 200013070 "Adobe ColdFusion WDDX Remote Code Execution (2)" (Authentication/Authorization Attacks, risk High), systems: Macromedia ColdFusion. References: CVE-2023-44353, CVE-2023-44350, CVE-2023-44351, CVE-2023-26347.
  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: passed (0 of 4 requests blocked), template CVE-2023-44353, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: blocked (4 of 4 requests blocked), template CVE-2023-44353, 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-2023-44353 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-44353