Security readout for executives and security teams
Plain-English summary
CVE-2026-1284 is a high-severity flaw in SOLIDWORKS eDrawings EPRT file handling. If a user opens a malicious EPRT file, an attacker could run code on that workstation. This is mainly a phishing or file-sharing risk for engineering and design teams using affected SOLIDWORKS Desktop 2025 or 2026 releases.
Executive priority
Prioritize remediation for engineering teams that exchange CAD files externally. The vulnerability needs user interaction, but successful exploitation could compromise high-value design workstations and intellectual property. No active exploitation is cited in the provided sources.
Technical view
The issue is an out-of-bounds write (CWE-787) in the EPRT file reading procedure of SOLIDWORKS eDrawings. CVSS 3.1 is 7.8 with local attack vector and required user interaction. Successful exploitation could affect confidentiality, integrity, and availability by enabling arbitrary code execution during file open.
Likely exposure
Exposure is limited to environments with affected Dassault Systèmes SOLIDWORKS eDrawings components in SOLIDWORKS Desktop 2025 SP0 or 2026 SP0, based on the source bundle. Risk is highest where users receive EPRT files from external partners, email, portals, or shared storage.
Exploitation context
The CVE requires a user to open a specially crafted EPRT file. The source bundle does not indicate public exploitation, and KEV status is false. Treat this as a user-assisted code execution risk rather than a remotely wormable server vulnerability.
Researcher notes
Available details identify the vulnerable parser area and impact but do not include exploit details or a named fixed build in the provided bundle. Validate affectedness by installed release and service pack, then track the Dassault Systèmes advisory for authoritative remediation guidance.
Mitigation direction
- Check the Dassault Systèmes advisory for fixed versions or vendor-prescribed updates.
- Prioritize updates for engineering workstations handling external EPRT files.
- Restrict opening EPRT files from untrusted sources until remediated.
- Use email, web, and file-sharing controls to quarantine suspicious CAD files.
- Ensure endpoint protection is active on SOLIDWORKS user workstations.
Validation and detection
- Inventory SOLIDWORKS eDrawings installations across engineering and design workstations.
- Confirm whether installed releases match SOLIDWORKS Desktop 2025 SP0 or 2026 SP0.
- Review whether users routinely receive EPRT files from external parties.
- Check vendor advisory status before closing remediation tickets.
- Monitor security tooling for suspicious activity after CAD file opens.
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-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2026-1284 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.3ds.com/trust-center/security/security-advisories/cve-2026-1284CVE reference
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.