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Servers and applications

CVE-2023-38203

Adobe ColdFusion versions 2018u17 (and earlier), 2021u7 (and earlier) and 2023u1 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in Arbitrary code execution. Exploitation of this issue does not require user interaction.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 8 Jan 2024.

Severity
Critical 9.8
Published
20 Jul 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Adobe ColdFusionServers and applications · cpe:a:adobe:coldfusion
  • Version 2023-update1
  • Version 2023
  • Version 2021-update7
  • Version 2021-update6
All 28 release lines
  • Version 2018
  • Version 2018-update1
  • Version 2018-update2
  • Version 2018-update3
  • Version 2018-update4
  • Version 2018-update5
  • Version 2018-update6
  • Version 2018-update7
  • Version 2018-update8
  • Version 2018-update9
  • Version 2018-update10
  • Version 2018-update11
  • Version 2018-update12
  • Version 2018-update13
  • Version 2018-update14
  • Version 2018-update15
  • Version 2018-update16
  • Version 2018-update17
  • Version 2021
  • Version 2021-update1
  • Version 2021-update2
  • Version 2021-update3
  • Version 2021-update4
  • Version 2021-update5
  • Version 2021-update6
  • Version 2021-update7
  • Version 2023
  • Version 2023-update1

Known exploited

CISA name
Adobe ColdFusion Deserialization of Untrusted Data Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
29 Jan 2024
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-38203
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-38203