A maliciously crafted DWG file can be used to write beyond the allocated buffer while parsing DWG files.
A maliciously crafted DWG file can be used to write beyond the allocated buffer while parsing DWG files. The vulnerability exists because the application fails to handle a crafted DWG file, which causes an unhandled exception. An attacker can leverage this vulnerability to execute arbitrary code.
- Published
- Jun 25, 2021
- Updated
- Jun 16, 2026
- EPSS
- 1.8% · 78th percentile
- CWE
- CWE-755
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.8%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| autodesk | advance steel | cpe:2.3:a:autodesk:advance_steel |
| autodesk | autocad | cpe:2.3:a:autodesk:autocad |
| autodesk | autocad architecture | cpe:2.3:a:autodesk:autocad_architecture |
| autodesk | autocad electrical | cpe:2.3:a:autodesk:autocad_electrical |
| autodesk | autocad lt | cpe:2.3:a:autodesk:autocad_lt |
| autodesk | autocad map 3d | cpe:2.3:a:autodesk:autocad_map_3d |
| autodesk | autocad mechanical | cpe:2.3:a:autodesk:autocad_mechanical |
| autodesk | autocad mep | cpe:2.3:a:autodesk:autocad_mep |
| autodesk | autocad plant 3d | cpe:2.3:a:autodesk:autocad_plant_3d |
| autodesk | civil 3d | cpe:2.3:a:autodesk:civil_3d |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- autodesk advance steel2019 and later · before 2019.1.3
- autodesk advance steel2020 and later · before 2020.1.4
- autodesk advance steel2021 and later · before 2021.1.1
- autodesk advance steel2022 and later · before 2022.0.1
- autodesk autocad2019 and later · before 2019.1.3
- autodesk autocad2020 and later · before 2020.1.4
- autodesk autocad2021 and later · before 2021.1.1
- autodesk autocad2022 and later · before 2022.0.1
- autodesk autocad architecture2019 and later · before 2019.1.3
- autodesk autocad architecture2020 and later · before 2020.1.4
- autodesk autocad architecture2021 and later · before 2021.1.1
- autodesk autocad architecture2022 and later · up to 2022.0.1 inclusive
- autodesk autocad electrical2019 and later · before 2019.1.3
- autodesk autocad electrical2020 and later · before 2020.1.4
- autodesk autocad electrical2021 and later · before 2021.1.1
- autodesk autocad electrical2022 and later · before 2022.0.1
- autodesk autocad lt2019 and later · before 2019.1.3
- autodesk autocad lt2020 and later · before 2020.1.4
- autodesk autocad lt2021 and later · before 2021.1.1
- autodesk autocad lt2022 and later · before 2022.0.1
Versions reported by the vendor
Affected version ranges reported by the assigning authority (autodesk). Independent of NVD's CPE analysis and usually ahead of it.
n/a Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D
- 2022.1.1affected
Same product
autodesk: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-40159An Information Disclosure vulnerability for JT files in Autodesk Inventor 2022, 2021, 2020, 2019 in conjunction with other vulnerabilities m32Monitor
- CVE-2021-40158A maliciously crafted JT file in Autodesk Inventor 2022, 2021, 2020, 2019 and AutoCAD 2022 may be forced to read beyond allocated boundaries32Monitor
- CVE-2021-27041A maliciously crafted DWG file can be used to write beyond the allocated buffer while parsing DWG files.32Monitor
- CVE-2019-7364DLL preloading vulnerability in versions 2017, 2018, 2019, and 2020 of Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Archi32Monitor
- CVE-2026-7406BMP File Parsing Untrusted Pointer Dereference in certain Autodesk products31Monitor
- CVE-2026-16463DXF File Parsing Heap-Based Overflow in Autodesk AutoCAD31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-755 · Improper Handling of Exceptional ConditionsCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.