known ransomware use

Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

Added to KEV
2024-01-08
Federal due date
2024-01-29
Vendor
Adobe
Product
ColdFusion
EPSS
99.9th percentile (score 0.943, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2023-38203

CISA short description

Adobe ColdFusion contains a deserialization of untrusted data vulnerability that allows for code execution.

Required action

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

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.