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Servers and applications

CVE-2018-4939

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021.

Severity
Critical 9.8
Published
19 May 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
62% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Adobe ColdFusionServers and applications · cpe:a:adobe:coldfusion
  • Version 2016-update5
  • Version 2016-update4
  • Version 2016-update3
  • Version 2016-update2
All 20 release lines
  • Version 11.0
  • Version 11.0-update1
  • Version 11.0-update2
  • Version 11.0-update3
  • Version 11.0-update4
  • Version 11.0-update5
  • Version 11.0-update6
  • Version 11.0-update7
  • Version 11.0-update8
  • Version 11.0-update9
  • Version 11.0-update10
  • Version 11.0-update11
  • Version 11.0-update12
  • Version 11.0-update13
  • Version 2016
  • Version 2016-update1
  • Version 2016-update2
  • Version 2016-update3
  • Version 2016-update4
  • Version 2016-update5

Known exploited

CISA name
Adobe ColdFusion Deserialization of Untrusted Data Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
3 May 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-4939
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-4939