What is CVE-2021-28633?

CVE-2021-28633 is a medium-severity vulnerability in Adobe Creative Cloud Desktop Application, classified under Creation of Temporary File in Directory with Insecure Permissions. CVSS score: 6.1/10. Published 2021-08-24.

How severe is CVE-2021-28633?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Adobe Creative Cloud Desktop Application

CVE-2021-28633

Adobe Creative Cloud Desktop Application (installer) version 2.4 (and earlier) is affected by an Insecure temporary file creation vulnerability. An attacker could leverage this vulnerability to cause arbitrary file overwriting in the context of the current user. Exploitation of this issue requires physical interaction to the system.

Published 2021-08-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Adobe Creative Cloud Desktop Application
Adobe Creative Cloud (Desktop Component) — versions unspecified

Weakness classification (CWE)

References

helpx.adobe.com/security/products/creative-cloud/apsb21-41.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-28633?: CVE-2021-28633 is a medium-severity vulnerability in Adobe Creative Cloud Desktop Application, classified under Creation of Temporary File in Directory with Insecure Permissions. CVSS score: 6.1/10. Published 2021-08-24.
How severe is CVE-2021-28633?: Medium severity. CVSS v3 base score is 6.1 out of 10.