# CVE-2023-26359: Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution

> CVE-2023-26359: Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-26359
Last updated: 2025-10-21T23:15:22Z

- Published: 2023-03-23 00:00 UTC · Updated: 2025-10-21 23:15 UTC · Assigner: adobe
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 17.0%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-08-21, federal due date 2023-09-11, ransomware use: Unknown
- CWE: CWE-502

## 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.

## CISA required action

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

## Affected vendors and products

- Adobe: ColdFusion

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-26359)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-26359)
- [https://helpx.adobe.com/security/products/coldfusion/apsb23-25.html](https://helpx.adobe.com/security/products/coldfusion/apsb23-25.html)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2023-26359 · Markdown: https://rewindex.com/cve/CVE-2023-26359.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-26359 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:35.423Z