What is CVE-2021-40156?

CVE-2021-40156 is a high-severity vulnerability in Autodesk Navisworks, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-15.

How severe is CVE-2021-40156?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-40156 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Autodesk Navisworks

CVE-2021-40156

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.

Vulnerability class: Buffer Overflow

EPSS: 0.010 (58.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Autodesk Navisworks — versions 2019, 2020, 2021
N/a Autodesk Navisworks — versions 2019, 2020, 2021, 2022

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

psirt@autodesk.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40156?: CVE-2021-40156 is a high-severity vulnerability in Autodesk Navisworks, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-09-15.
How severe is CVE-2021-40156?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-40156 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.