CVE-2021-27043

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.

Published: 2021-06-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-27043 is rated Moderate Risk (46.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.22%). 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-2021-27043

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 2025-05-14 0.31% 0.22% -0.09%
2 2025-04-21 0.43% 0.31% -0.12%
3 2025-03-30 — 0.43% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-27043

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P 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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2021-27043

Affected software / configurations for CVE-2021-27043

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:*:*:*:*:*:*:*:*

References for CVE-2021-27043

cvelogic Threat Intelligence