HOMEVULNERABILITIESCVE-2023-38203
HIGHCISA KEVIN THE WILD

CVE-2023-38203

Published: January 8, 2024

EPSS:94.26%probability of exploitation in 30 daysPercentile:99.9th

Official Description

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

NVD Source

CISA KEV Advisory

Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

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

Added to KEV: 2024-01-08Federal patch deadline: 2024-01-29⚠ USED IN RANSOMWARE CAMPAIGNS
Required Action (CISA)

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.

Recommended Action

Administrators should apply the latest security updates for Adobe ColdFusion immediately. Reviewing and hardening deserialization configurations can also help prevent similar attacks.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

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

Mentioned vendors (from description):
Adobe
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (2)

Quick Facts

CVE IDCVE-2023-38203
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)94.26%
PublishedJan 8, 2024

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
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.