IRONSMITHINTEL
HIGHCVSS8.6
|
Actively Exploited
|CISA KEV|CVE-2023-26360|Auth: none — unauthenticated|Reboot: required|Manual only

Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

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

Published Mar 23, 2023 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss. Federal agencies are required to remediate by 2023-04-05 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Software Vulnerability (CWE-284) (CWE-284) vulnerability in Adobe ColdFusion. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

📧

Phishing link

🖼

Malicious file

🔓

Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

Endpoint Administrators
IT Security
Running coldfusion: 2018, 2021
Real-world incidentsWhat we've seen

Active exploitation documented in the wild. Threat-research write-up: http://packetstormsecurity.com/files/172079/Adobe-ColdFusion-Unauthenticated-Remote-Code-Execution.html

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Apply updates per vendor instructions.

References

    1
    Vendor advisory: https://helpx.adobe.com/security/products/coldfusion/apsb23-25.html
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2023-26360
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-26360
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