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Fencer Intel
high 7.8

CVE-2021-27043 json

An Arbitrary Address Write issue in the Autodesk DWG application can allow a malicious user to leverage the application to write in unexpec…

published 5y ago modified 4mo ago also EUVD-2021-13814

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

An Arbitrary Address Write issue in the Autodesk DWG application can allow a malicious user to leverage the application to write in unexpected paths. In order to exploit this the attacker would need the victim to enable full page heap in the application.

Patch / fix

  • autodesk advance_steel 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_architecture 2019.1.3, 2020.1.4, 2021.1.1
  • autodesk autocad_electrical 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_lt 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_map_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_mechanical 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_mep 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk autocad_plant_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk civil_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
  • autodesk dwg_trueview 2022.1.1

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Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • n/a Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.