CVE-2018-4939

Name: CVE-2018-4939
Creator: NVD / NIST
Published: 2018-05-19T17:29:01.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 63.30%

Last modified Jun 17, 2026

CVE-2018-4939 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 63.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

63.30%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Adobe	Coldfusion	11.0
Adobe	Coldfusion	2016

References

http://www.securityfocus.com/bid/103718Third Party Advisory, VDB Entry
https://helpx.adobe.com/security/products/coldfusion/apsb18-14.htmlVendor Advisory
http://www.securityfocus.com/bid/103718Third Party Advisory, VDB Entry
https://helpx.adobe.com/security/products/coldfusion/apsb18-14.htmlVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4939Third Party Advisory, US Government Resource

Timeline

Published: May 19, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-4939?

How severe is CVE-2018-4939?

CVE-2018-4939 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 63.30% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-4939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST