What is CVE-2021-40733?

CVE-2021-40733 is a high-severity vulnerability in Adobe Animate, classified under CWE-788. CVSS score: 7.8/10. Published 2021-11-18.

How severe is CVE-2021-40733?

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

Buffer overflow in Adobe Animate

CVE-2021-40733

Adobe Animate version 21.0.9 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious .psd file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

Published 2021-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.8% 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: 0.026 · change: -0.001

Affected products

Adobe Animate — versions unspecified
Microsoft Windows

Weakness classification (CWE)

References

helpx.adobe.com/security/products/animate/apsb21-105.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40733?: CVE-2021-40733 is a high-severity vulnerability in Adobe Animate, classified under CWE-788. CVSS score: 7.8/10. Published 2021-11-18.
How severe is CVE-2021-40733?: High severity. CVSS v3 base score is 7.8 out of 10.