CVE-2023-38203
Published: January 8, 2024
Official Description
Adobe ColdFusion contains a deserialization of untrusted data vulnerability that allows for code execution.
CISA KEV Advisory
Adobe ColdFusion Deserialization of Untrusted Data Vulnerability
Adobe ColdFusion contains a deserialization of untrusted data vulnerability that allows for code execution.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This vulnerability in Adobe ColdFusion allows an attacker to execute arbitrary code by sending specially crafted data that the application then processes insecurely. With an EPSS score of 0.94264, there is a very high likelihood of this vulnerability being exploited, making it an urgent concern. It is also confirmed to be exploited in the wild by CISA.
Active exploitation of this vulnerability has been observed in the wild, indicating that working exploits are circulating and being used by attackers. This vulnerability is remotely exploitable.
Administrators should apply the latest security updates for Adobe ColdFusion immediately. Reviewing and hardening deserialization configurations can also help prevent similar attacks.
Technical Analysis
CVE-2023-38203 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2023-38203 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-38203 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1