How severe is CVE-2021-40155?

CVE-2021-40155 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40155?

CVE-2021-40155 primarily affects Autodesk Navisworks. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-40155 published?

CVE-2021-40155 was published on 2021-09-15 and last updated on 2026-06-17.

CVE-2021-40155

CVE-2021-40155 is a high-severity vulnerability in Autodesk Navisworks with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Autodesk Navisworks
Published: 2021-09-15
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2021-40155?: A maliciously crafted DWG file in Autodesk Navisworks 2019, 2020, 2021, 2022 can be forced to read beyond allocated boundaries when parsing the DWG files. This vulnerability can be exploited to execute arbitrary code.
How severe is CVE-2021-40155?: CVE-2021-40155 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40155?: CVE-2021-40155 primarily affects Autodesk Navisworks. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-40155 published?: CVE-2021-40155 was published on 2021-09-15 and last updated on 2026-06-17.

References

https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0009

Affected products (4)

cpe:2.3:a:autodesk:navisworks:2019:*:*:*:*:*:*:*
cpe:2.3:a:autodesk:navisworks:2020:*:*:*:*:*:*:*
cpe:2.3:a:autodesk:navisworks:2021:*:*:*:*:*:*:*
cpe:2.3:a:autodesk:navisworks:2022:*:*:*:*:*:*:*

More vulnerabilities in Autodesk Navisworks

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