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

CVE-2018-4939 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-11-03

Adobe ColdFusion contains a deserialization of untrusted data vulnerability (CWE-502) that allows for arbitrary code execution. The vulnerability affects ColdFusion 2016 Update 5 and earlier, as well as ColdFusion 11 Update 13 and earlier.

Technologies: Adobe ColdFusion. Vendors: Adobe.

Quick answers

Is CVE-2018-4939 exploited in the wild?
Yes. CVE-2018-4939 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2018-4939?
Critical severity, with a CVSS score of 9.8, published 3 November 2021.
Which products and versions are affected?
Adobe ColdFusion 2016 Update 5 and earlier versions; Adobe ColdFusion 11 Update 13 and earlier versions.
Is there a fix for CVE-2018-4939?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2018-4939 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2018-4939?
Check whether you run Adobe ColdFusion. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Adobe ColdFusion 2016 Update 5 and earlier versions
  • Adobe ColdFusion 11 Update 13 and earlier versions

Timeline

  • 2018-04-10: advisory: Adobe APSB18-14 advisory published
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed: NVD publication date

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