Code execution via crafted PDF heap overflow
Published Apr 15, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Autodesk desktop products allows attackers to execute code via a crafted PDF that a user links or imports. The PDF-processing component writes beyond a heap buffer while handling the crafted file; Autodesk has not published the affected function or field. Attackers must persuade a user to link or import the file, after which code runs in the current process or the process can crash or disclose data.
Summary
What happened
Heap-based buffer overflow in Autodesk desktop products allows attackers to execute code via a crafted PDF that a user links or imports. The PDF-processing component writes beyond a heap buffer while handling the crafted file; Autodesk has not published the affected function or field. Attackers must persuade a user to link or import the file, after which code runs in the current process or the process can crash or disclose data.
The record
- CVE
- CVE-2025-1656
- Published
- Apr 15, 2025
- Updated
- Feb 26, 2026
- Vendor
- Autodesk
- Product
- AutoCAD Mechanical
- Classifications
- CWE-122, CAPEC-100, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 15, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2023 <2023.1.8
- Affected versionversion=2024 <2024.1.8
- Affected versionversion=2025 <2025.1.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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