CVE-2021-40156

mediumpriority · track · 31EPSS 0.010 · 62 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.99% (62nd) EPSS

CVSS 6.8 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

A maliciously crafted DWG file in Autodesk Navisworks 2019, 2020, 2021, 2022 can be forced to write beyond allocated boundaries when parsing the DWG files. This vulnerability can be exploited to execute arbitrary code.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (9)

Products and version ranges known to be affected.

n/a Autodesk Navisworks≤ 2019, 2020, 2021, 2022enisa_euvdEU
Autodesk Inc. Navisworks≤ 2022fstec_bduRU
Autodesk Inc. Navisworks≤ 2021fstec_bduRU
Autodesk Inc. Navisworks≤ 2020fstec_bduRU
Autodesk Inc. Navisworks≤ 2019fstec_bduRU
autodesk navisworks= 2019nvdUScpe:2.3:a:autodesk:navisworks:*:*:*:*:*:*:*:*
autodesk navisworks= 2020nvdUScpe:2.3:a:autodesk:navisworks:*:*:*:*:*:*:*:*
autodesk navisworks= 2021nvdUScpe:2.3:a:autodesk:navisworks:*:*:*:*:*:*:*:*
autodesk navisworks= 2022nvdUScpe:2.3:a:autodesk:navisworks:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-09-15modified 2026-06-17

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+16135 more

references (6)

External citations — patches, advisories, analysis.

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