What is CVE-2021-43017?

CVE-2021-43017 is a medium-severity vulnerability in Adobe Creative Cloud Desktop Application, classified under Creation of Temporary File in Directory with Insecure Permissions. CVSS score: 4.2/10. Published 2021-11-18.

How severe is CVE-2021-43017?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Adobe Creative Cloud Desktop Application

CVE-2021-43017

Adobe Creative Cloud version 5.5 (and earlier) are affected by an Application denial of service vulnerability in the Creative Cloud Desktop installer. An authenticated attacker with root privileges could leverage this vulnerability to achieve denial of service by planting a malicious file on the victim's local machine. User interaction is required before product installation to abuse this vulnerability.

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

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.000

Affected products

Adobe Creative Cloud Desktop Application
Adobe Gocart — versions unspecified
Apple macOS

Weakness classification (CWE)

CWE-379 — Creation of Temporary File in Directory with Insecure Permissions

References

helpx.adobe.com/security/products/creative-cloud/apsb21-111.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-43017?: CVE-2021-43017 is a medium-severity vulnerability in Adobe Creative Cloud Desktop Application, classified under Creation of Temporary File in Directory with Insecure Permissions. CVSS score: 4.2/10. Published 2021-11-18.
How severe is CVE-2021-43017?: Medium severity. CVSS v3 base score is 4.2 out of 10.