Revit: Access of Resource Using Incompatible Type
CVE-2025-8354 is a high-severity access of resource using incompatible type vulnerability in Revit from Autodesk, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists versions 2026.3, 2025.4.4, 2024.3.4 as the first without the flaw, so updating Revit to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Revit to 2026.3 or 2025.4.4 or 2024.3.4, whichever matches your release line, or a later version.
- Update Revit LT to 2026.3 or 2025.4.4 or 2024.3.4, whichever matches your release line, or a later version.
- Read the advisory on autodesk.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Autodesk | Revit | 2026 up to, but not including, 2026.3; 2025 up to, but not including, 2025.4.4; 2024 up to, but not including, 2024.3.4 | 2026.3, 2025.4.4, 2024.3.4 |
| Autodesk | Revit LT | 2026 up to, but not including, 2026.3; 2025 up to, but not including, 2025.4.4; 2024 up to, but not including, 2024.3.4 | 2026.3, 2025.4.4, 2024.3.4 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (autodesk.com).
Official description
A maliciously crafted RFA file, when parsed through Autodesk Revit, can force a Type Confusion vulnerability. A malicious actor may leverage this vulnerability to cause a crash, cause data corruption, or execute arbitrary code in the context of the current process.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Access of Resource Using Incompatible Type
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
More Access of Resource Using Incompatible Type vulnerabilities (CWE-843)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Revit
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Access of Resource Using Incompatible Type vulnerabilities
- 9.8 Critical severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
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