What is CVE-2020-9638?

CVE-2020-9638 is a high-severity vulnerability in Adobe After Effects, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2020-06-25.

How severe is CVE-2020-9638?

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

Buffer overflow in Adobe After Effects

CVE-2020-9638

Adobe After Effects versions 17.1 and earlier have a heap overflow vulnerability. Successful exploitation could lead to arbitrary code execution .

Vulnerability class: Buffer Overflow

Published 2020-06-25 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.087 (94.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.090 · newest: 0.087 · change: -0.003

Affected products

Adobe After Effects — versions 17.1 and earlier versions
Adobe After Effects
Microsoft Windows

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

helpx.adobe.com/security/products/after_effects/apsb20-35.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-9638?: CVE-2020-9638 is a high-severity vulnerability in Adobe After Effects, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2020-06-25.
How severe is CVE-2020-9638?: High severity. CVSS v3 base score is 7.8 out of 10.