CVE-2021-27040

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.

Published: 2021-06-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-27040 is rated Moderate Risk (45.1/100): CVSS Low severity, with medium exploitation likelihood (EPSS 2.74%). EPSS rose +2.41% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-27040

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.33% 2.74% +2.41%
2 2025-11-21 0.36% 0.33% -0.03%
3 2025-11-18 — 0.36% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-27040

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2021-27040

Affected software / configurations for CVE-2021-27040

Vendor Product Version Raw CPE
autodesk advance_steel >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:advance_steel:*:*:*:*:*:*:*:*
autodesk advance_steel >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:advance_steel:*:*:*:*:*:*:*:*
autodesk advance_steel >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:advance_steel:*:*:*:*:*:*:*:*
autodesk advance_steel >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:advance_steel:*:*:*:*:*:*:*:*
autodesk autocad >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad:*:*:*:*:*:*:*:*
autodesk autocad >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad:*:*:*:*:*:*:*:*
autodesk autocad >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad:*:*:*:*:*:*:*:*
autodesk autocad >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad:*:*:*:*:*:*:*:*
autodesk autocad_architecture >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_architecture:*:*:*:*:*:*:*:*
autodesk autocad_architecture >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_architecture:*:*:*:*:*:*:*:*
autodesk autocad_architecture >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_architecture:*:*:*:*:*:*:*:*
autodesk autocad_architecture >= 2022, <= 2022.0.1 cpe:2.3:a:autodesk:autocad_architecture:*:*:*:*:*:*:*:*
autodesk autocad_electrical >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_electrical:*:*:*:*:*:*:*:*
autodesk autocad_electrical >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_electrical:*:*:*:*:*:*:*:*
autodesk autocad_electrical >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_electrical:*:*:*:*:*:*:*:*
autodesk autocad_electrical >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_electrical:*:*:*:*:*:*:*:*
autodesk autocad_lt >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_lt:*:*:*:*:*:*:*:*
autodesk autocad_lt >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_lt:*:*:*:*:*:*:*:*
autodesk autocad_lt >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_lt:*:*:*:*:*:*:*:*
autodesk autocad_lt >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_lt:*:*:*:*:*:*:*:*
autodesk autocad_map_3d >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_map_3d:*:*:*:*:*:*:*:*
autodesk autocad_map_3d >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_map_3d:*:*:*:*:*:*:*:*
autodesk autocad_map_3d >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_map_3d:*:*:*:*:*:*:*:*
autodesk autocad_map_3d >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_map_3d:*:*:*:*:*:*:*:*
autodesk autocad_mechanical >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_mechanical:*:*:*:*:*:*:*:*
autodesk autocad_mechanical >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_mechanical:*:*:*:*:*:*:*:*
autodesk autocad_mechanical >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_mechanical:*:*:*:*:*:*:*:*
autodesk autocad_mechanical >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_mechanical:*:*:*:*:*:*:*:*
autodesk autocad_mep >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_mep:*:*:*:*:*:*:*:*
autodesk autocad_mep >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_mep:*:*:*:*:*:*:*:*
autodesk autocad_mep >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_mep:*:*:*:*:*:*:*:*
autodesk autocad_mep >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_mep:*:*:*:*:*:*:*:*
autodesk autocad_plant_3d >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:autocad_plant_3d:*:*:*:*:*:*:*:*
autodesk autocad_plant_3d >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:autocad_plant_3d:*:*:*:*:*:*:*:*
autodesk autocad_plant_3d >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:autocad_plant_3d:*:*:*:*:*:*:*:*
autodesk autocad_plant_3d >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:autocad_plant_3d:*:*:*:*:*:*:*:*
autodesk civil_3d >= 2019, < 2019.1.3 cpe:2.3:a:autodesk:civil_3d:*:*:*:*:*:*:*:*
autodesk civil_3d >= 2020, < 2020.1.4 cpe:2.3:a:autodesk:civil_3d:*:*:*:*:*:*:*:*
autodesk civil_3d >= 2021, < 2021.1.1 cpe:2.3:a:autodesk:civil_3d:*:*:*:*:*:*:*:*
autodesk civil_3d >= 2022, < 2022.0.1 cpe:2.3:a:autodesk:civil_3d:*:*:*:*:*:*:*:*
autodesk dwg_trueview >= 2022, < 2022.1.1 cpe:2.3:a:autodesk:dwg_trueview:*:*:*:*:*:*:*:*
iconics genesis64 <= 10.97 cpe:2.3:a:iconics:genesis64:*:*:*:*:*:*:*:*
mitsubishielectric mc_works64 <= 4.04e cpe:2.3:a:mitsubishielectric:mc_works64:*:*:*:*:*:*:*:*

References for CVE-2021-27040

cvelogic Threat Intelligence