CVE-2021-27040

mediumpriority · track · 14EPSS 0.027 · 86 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.74% (86th) EPSS

CVSS 4.3 · medium

Is it mine?

89 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A maliciously crafted DWG file can be forced to read beyond allocated boundaries when parsing the DWG file. This vulnerability can be exploited to execute arbitrary code.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationGENESIS64cisa_csaf_ot
Do not click web links or open unsolicited attachments in email messages.
MitigationMC Works64cisa_csaf_ot
Do not click web links or open unsolicited attachments in email messages.

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 · low–high · 3.1–8.8

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.13.3lowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 1.4

v3.03.3lowCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · CISA US

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

v3.13.1lowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-787US

affected products (89)

Products and version ranges known to be affected.

GENESIS64: (all versions up to and including 10.97)all versionscisa_csaf_otUS
MC Works64: (all version of MC Works64 up to and including Version 4.04E)all versionscisa_csaf_otUS
ICONICS, Mitsubishi Electric GENESIS64≤ 10.97cisa_csaf_otUS
ICONICS, Mitsubishi Electric MC Works64≤ 4.04Ecisa_csaf_otUS
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, 2021, 2020, 2019enisa_euvdEU
Autodesk Inc. AutoCAD≤ 2020fstec_bduRU
Autodesk Inc. AutoCAD≤ 2019fstec_bduRU
Autodesk Inc. AutoCAD≤ 2021fstec_bduRU
Autodesk Inc. AutoCAD≤ 2022fstec_bduRU
Autodesk Inc. AutoCAD Architecture≤ 2022fstec_bduRU
Autodesk Inc. AutoCAD Architecture≤ 2021fstec_bduRU
Autodesk Inc. AutoCAD Architecture≤ 2020fstec_bduRU
Autodesk Inc. AutoCAD Architecture≤ 2019fstec_bduRU
Autodesk Inc. AutoCAD Electrical≤ 2020fstec_bduRU
Autodesk Inc. AutoCAD Electrical≤ 2019fstec_bduRU
Autodesk Inc. AutoCAD Electrical≤ 2022fstec_bduRU
Autodesk Inc. AutoCAD Electrical≤ 2021fstec_bduRU
Autodesk Inc. AutoCAD LT≤ 2020fstec_bduRU
Autodesk Inc. AutoCAD LT≤ 2019fstec_bduRU
Autodesk Inc. AutoCAD LT≤ 2021fstec_bduRU

showing 20 of 89

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-294-01ICONICS GENESIS64 and Mitsubishi Electric MC Works642021-10-21icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities may result in remote code execution.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot NVD CVE.org MITRE

published 2021-06-25modified 2026-06-17

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+11867 more

references (22)

External citations — patches, advisories, analysis.

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