Code execution via unchecked EPRT heap copy
Published Jan 26, 2026 · Updated Jan 26, 2026
Heap-based buffer overflow in SOLIDWORKS eDrawings 2025 SP0 through SP5 and 2026 SP0 allows attackers to execute code via a crafted EPRT file. The EPRT parser copies user-supplied data into a fixed-length heap buffer without first validating its length, allowing the copy to overrun the allocation. Exploitation requires the target to visit a malicious page or open a malicious file and runs code in the current process context.
Summary
What happened
Heap-based buffer overflow in SOLIDWORKS eDrawings 2025 SP0 through SP5 and 2026 SP0 allows attackers to execute code via a crafted EPRT file. The EPRT parser copies user-supplied data into a fixed-length heap buffer without first validating its length, allowing the copy to overrun the allocation. Exploitation requires the target to visit a malicious page or open a malicious file and runs code in the current process context.
The record
- CVE
- CVE-2026-1283
- Published
- Jan 26, 2026
- Updated
- Jan 26, 2026
- Vendor
- Dassault Systèmes
- Product
- SOLIDWORKS eDrawings
- Classifications
- CWE-122, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 26, 2026CVE publishedPublication date reported by the CVE source.
- Jan 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Release SOLIDWORKS Desktop 2025 SP0 <=Release SOLIDWORKS Desktop 2025 SP5
- Affected versionversion=Release SOLIDWORKS Desktop 2026 SP0
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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