CVE-2018-4939: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 62% chance of exploitation in the next 30 days.

Adobe ColdFusion Update 5 and earlier versions, ColdFusion 11 Update 13 and earlier versions have an exploitable Deserialization of Untrusted Data vulnerability. Successful exploitation could lead to arbitrary code execution.

Affected products

• Adobe ColdFusion: version 11.0 only; version 2016 only

Published 2018-05-19. Last modified 2026-06-17.