What is CVE-2017-3066?

CVE-2017-3066 is a critical-severity vulnerability in Adobe Coldfusion, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-04-27.

How severe is CVE-2017-3066?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2017-3066 known to be exploited?

Yes. CVE-2017-3066 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-02-24), indicating it is being actively exploited. 35 public proof-of-concept repositories are indexed.

Deserialization in Adobe Coldfusion

CVE-2017-3066

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 c…

Vulnerability class: Insecure Deserialization

EPSS: 0.906 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Adobe Coldfusion — versions 10.0, 11.0, 2016
N/a Adobe Coldfusion 2016 Update 3 And Earlier, 11 10 22 Earlier — versions Adobe ColdFusion ColdFusion 2016 Update 3 and earlier, ColdFusion 11 update 11 and earlier, ColdFusion 10 Update 22 and earlier

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-02-24. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-03-17.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

psirt@adobe.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
psirt@adobe.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
psirt@adobe.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
psirt@adobe.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2017-3066?: CVE-2017-3066 is a critical-severity vulnerability in Adobe Coldfusion, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-04-27.
How severe is CVE-2017-3066?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-3066 known to be exploited?: Yes. CVE-2017-3066 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-02-24), indicating it is being actively exploited. 35 public proof-of-concept repositories are indexed.