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

> CVE-2018-4939: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-4939
Last updated: 2025-10-21T23:45:51Z

- Published: 2018-05-19 17:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: adobe
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 62.0%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown

## Description

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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- n/a: Adobe ColdFusion ColdFusion Update 5 and earlier versions, ColdFusion 11 Update 13 and earlier versions

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-4939)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-4939)
- [https://helpx.adobe.com/security/products/coldfusion/apsb18-14.html](https://helpx.adobe.com/security/products/coldfusion/apsb18-14.html)
- [http://www.securityfocus.com/bid/103718](http://www.securityfocus.com/bid/103718)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-4939 · Markdown: https://rewindex.com/cve/CVE-2018-4939.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-4939 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:48:28.314Z