---
title: "CVE-2017-3066: Adobe ColdFusion Deserialization Vulnerability"
url: https://erroneo.us/security/cve/CVE-2017-3066/
description: "CVE-2017-3066 (Adobe ColdFusion): Exploited in the wild (CISA KEV). Adobe ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier…"
type: vulnerability-record
section: "Security Digest"
date_published: 2017-04-27
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2017-3066"
kev: true
cvss: 9.8
epss: 0.90597
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2017-3066: Adobe ColdFusion Deserialization Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Adobe ColdFusion. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-02-24, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-03-17 ; treat that as the outer limit, not the target.
- EPSS 90.6% , percentile 99.8: FIRST’s model estimates a 90.6% chance of exploitation activity in the next 30 days, higher than 99.8% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

Adobe ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier, ColdFusion 10 Update 22 and earlier have a Java deserialization vulnerability in the Apache BlazeDS library. Successful exploitation could lead to arbitrary code execution.

## Affected products (CVE record)

- n/a Adobe ColdFusion ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier, ColdFusion 10 Update 22 and earlier: Adobe ColdFusion ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier, ColdFusion 10 Update 22 and earlier

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2025-02-24; federal due date 2025-03-17. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 90.60% probability of exploitation activity in the next 30 days; percentile 99.8.

## Sources

- [Listed in CISA KEV notes (helpx.adobe.com)](https://helpx.adobe.com/security/products/coldfusion/apsb17-14.html)
- [CVE.org record CVE-2017-3066](https://www.cve.org/CVERecord?id=CVE-2017-3066)
- [NVD entry CVE-2017-3066](https://nvd.nist.gov/vuln/detail/CVE-2017-3066)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-3066)
- [43993](https://www.exploit-db.com/exploits/43993/)
- [98003](http://www.securityfocus.com/bid/98003)
- [1038364](http://www.securitytracker.com/id/1038364)

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Source page: https://erroneo.us/security/cve/CVE-2017-3066/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt