CVE-2023-26359

CRITICAL9.8

CISA KEV

Published 2023-03-23 · Updated 2026-06-17 · Source psirt@adobe.com

Summary

CVE-2023-26359 is a critical-severity (CVSS 9.8) vulnerability in Adobe ColdFusion. CISA added it to the Known Exploited Vulnerabilities catalog on August 21, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 11, 2023. CISA does not currently list it as used in ransomware campaigns. Adobe has 83 vulnerabilities in the KEV catalog, 11 of them linked to ransomware.

All 83 known-exploited Adobe vulnerabilities →

Description

Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

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

CWE-502

CISA Known-Exploited Vulnerability

Product: Adobe — ColdFusion

Name: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

Date added: 2023-08-21 · Due: 2023-09-11

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

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