What is CVE-2021-27040?

CVE-2021-27040 is a low-severity vulnerability in Autodesk Advance Steel, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-06-25.

How severe is CVE-2021-27040?

Low severity. CVSS v3 base score is 3.3 out of 10.

Out-of-bounds Read in Autodesk Advance Steel

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.

Vulnerability class: Buffer Overflow

Published 2021-06-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.027 (86.0th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

www.autodesk.com/trust/security-advisories/adsk-sa-2021-0004 (Vendor Advisory)
www.zerodayinitiative.com/advisories/ZDI-21-1238/ (VDB Entry, Third Party Advisory)
www.zerodayinitiative.com/advisories/ZDI-21-1236/ (VDB Entry, Third Party Advisory)
www.zerodayinitiative.com/advisories/ZDI-22-378/ (VDB Entry, Third Party Advisory)
www.zerodayinitiative.com/advisories/ZDI-22-473/ (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-27040?: CVE-2021-27040 is a low-severity vulnerability in Autodesk Advance Steel, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-06-25.
How severe is CVE-2021-27040?: Low severity. CVSS v3 base score is 3.3 out of 10.