What is CVE-2020-9677?

CVE-2020-9677 is a high-severity vulnerability in Adobe Prelude, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2020-07-22.

How severe is CVE-2020-9677?

High severity. CVSS v3 base score is 8.8 out of 10.

Out-of-bounds Read in Adobe Prelude

CVE-2020-9677

Adobe Prelude versions 9.0 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to arbitrary code execution.

Vulnerability class: Buffer Overflow

Published 2020-07-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.045 (91.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000

Affected products

Adobe Prelude — versions 9.0 and earlier versions
Adobe Prelude
Microsoft Windows

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

helpx.adobe.com/security/products/prelude/apsb20-46.html (Vendor Advisory)

Frequently asked questions

What is CVE-2020-9677?: CVE-2020-9677 is a high-severity vulnerability in Adobe Prelude, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2020-07-22.
How severe is CVE-2020-9677?: High severity. CVSS v3 base score is 8.8 out of 10.