# CVE-2023-26359: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

- Exploited (CISA KEV): yes, added 2023-08-21
- Published: 2023-03-23
- CVSS: 9.8 CRITICAL (v3.1)
- EPSS: 17.0% (97th percentile)
- CWE: CWE-502

Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. 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 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

"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-2023-26359 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-26359