CVE-2021-43017

Name: CVE-2021-43017
Creator: NVD / NIST
Published: 2021-11-18T19:15:09.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.2/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2021-43017 is a medium-severity vulnerability rated 4.2/10 on the CVSS scale. 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. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.2/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.13%

62.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-379

Affected Software

Vendor	Product	Versions
Adobe	Creative Cloud Desktop Application	<= 5.5

References

https://helpx.adobe.com/security/products/creative-cloud/apsb21-111.htmlPatch, Vendor Advisory
https://helpx.adobe.com/security/products/creative-cloud/apsb21-111.htmlPatch, Vendor Advisory

Timeline

Published: Nov 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43017?

How severe is CVE-2021-43017?

CVE-2021-43017 has a CVSS score of 4.2/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43017?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43017?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST