CVE-2026-0534
Published: 22 January 2026
Summary
CVE-2026-0534 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Autodesk Fusion. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 5.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS in desktop client app directly enables client-side code execution (T1203) after user opens and interacts with malicious file (T1204.002).
NVD Description
A maliciously crafted HTML payload, stored in a part’s attribute and clicked by a user, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage this vulnerability to read local files…
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or execute arbitrary code in the context of the current process.
Deeper analysisAI
CVE-2026-0534 is a Stored Cross-site Scripting (XSS) vulnerability, mapped to CWE-79, in the Autodesk Fusion desktop application. Published on 2026-01-22, it carries a CVSS v3.1 base score of 7.1 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N). The flaw occurs when a maliciously crafted HTML payload, stored in a part’s attribute, is clicked by a user, triggering the XSS execution.
Exploitation requires an attacker to deliver a malicious part file to a victim, who must then open it in Autodesk Fusion and click the affected attribute, necessitating local access and user interaction but no privileges. Successful attacks enable the malicious payload to read local files or execute arbitrary code in the context of the Autodesk Fusion process, resulting in high impacts to confidentiality and integrity.
Autodesk has addressed the vulnerability in security advisory ADSK-SA-2026-0001, providing updated installers for mitigation: Fusion Client Downloader.dmg for macOS and Fusion Client Downloader.exe for Windows.
Details
- CWE(s)