Security readout for executives and security teams
Plain-English summary
CVE-2026-0535 affects Autodesk Fusion 2603.0. A hostile component description can store malicious HTML that runs when a user clicks it. In the Fusion desktop process, this may allow local file access or arbitrary code execution, creating meaningful risk to engineering workstations and sensitive design data.
Executive priority
Treat as a high-priority workstation remediation item for organizations using Autodesk Fusion. The business concern is compromise of engineering desktops and possible exposure or manipulation of local design files. Prioritize patch validation over broad emergency response unless new exploitation evidence appears.
Technical view
This is a stored cross-site scripting issue, CWE-79, in Autodesk Fusion’s electronic library component description handling. The CVSS 3.1 score is 8.1 with network attack vector, low complexity, no privileges required, and user interaction required. Scope is unchanged, with high confidentiality and integrity impact.
Likely exposure
Organizations using Autodesk Fusion version 2603.0 are the stated affected population. Systems not running this version are listed as unaffected by default in the CVE data. Exposure depends on whether users can receive, import, browse, or click untrusted component descriptions.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires a malicious stored description and a user click. The impact is serious because execution occurs inside a trusted desktop engineering application context.
Researcher notes
Available public data identifies Fusion 2603.0, stored XSS in component descriptions, and potential local file read or code execution in the current process. The bundle provides patch download links and a vendor advisory, but does not include exploit evidence or a specific fixed build number.
Mitigation direction
- Review Autodesk advisory ADSK-SA-2026-0001 for the supported fix path.
- Update Autodesk Fusion using Autodesk-provided installer or update channels.
- Prioritize engineering workstations handling untrusted libraries or external components.
- Avoid clicking untrusted component descriptions until updated.
- If fixed version details are unclear, confirm directly with Autodesk guidance.
Validation and detection
- Inventory Autodesk Fusion installations and identify version 2603.0.
- Confirm whether Fusion has been updated after Autodesk advisory ADSK-SA-2026-0001.
- Check endpoint software inventory for remaining affected builds.
- Review user workflows involving external or shared component libraries.
- Document remediation status for engineering and design workstations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-0535 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N2.85.2autodeskVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.exeCVE reference, autodesk · patch
- https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.dmgCVE reference, autodesk · patch
- https://www.autodesk.com/trust/security-advisories/adsk-sa-2026-0001CVE reference, autodesk · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.