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Vulnerability record · CVE-2021-28547 · published 29 September 2021

CVE-2021-28547: Adobe creative cloud desktop application improper input validation vulnerability

Adobe · Creative Cloud Desktop Application

Adobe Creative Cloud Desktop Application for macOS version 5.3 (and earlier) is affected by a privilege escalation vulnerability that could allow a normal user to delete the OOBE directory and get permissions of any directory under the administrator authority.

7.8 CVSS 3.0 High EPSS 0.52% · top 58.1% CWE-20 · Improper input validation
7.8CVSS 3.0 base score, v2 4.6
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Adobe Creative Cloud Desktop Application for macOS version 5.3 (and earlier) is affected by a privilege escalation vulnerability that could allow a normal user to delete the OOBE directory and get permissions of any directory under the administrator authority.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://helpx.adobe.com/security/products/creative-cloud/apsb21-18.html PatchVendor Advisory
https://helpx.adobe.com/security/products/creative-cloud/apsb21-18.html PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-9682Adobe creative cloud desktop application link following vulnerabilityAdobe Creative Cloud Desktop Application versions 5.1 and earlier have a symlink vulnerability vulnerability. Successful exploitation could lead to a…EPSS 4.3%9.8CVE-2020-9670Adobe creative cloud desktop application link following vulnerabilityAdobe Creative Cloud Desktop Application versions 5.1 and earlier have a symlink vulnerability vulnerability. Successful exploitation could lead to p…EPSS 3.6%9.8CVE-2020-9671Adobe creative cloud desktop application incorrect permission assignment vulnerabilityAdobe Creative Cloud Desktop Application versions 5.1 and earlier have an insecure file permissions vulnerability. Successful exploitation could lead…EPSS 4.0%7.8CVE-2026-48344Adobe creative cloud desktop application toctou race condition vulnerabilityCreative Cloud Desktop is affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could result in arbitrary code execution…EPSS 0.17%7.8CVE-2026-48272Adobe creative cloud desktop application uncontrolled search path element vulnerabilityCreative Cloud Desktop is affected by an Uncontrolled Search Path Element vulnerability that could result in arbitrary code execution in the context …EPSS 0.23%7.8CVE-2021-43019Adobe creative cloud desktop application incorrect permission assignment vulnerabilityAdobe Creative Cloud version 5.5 (and earlier) are affected by a privilege escalation vulnerability in the resources leveraged by the Setup.exe servi…EPSS 2.2%7.8CVE-2021-28594Adobe creative cloud desktop application uncontrolled search path element vulnerabilityAdobe Creative Cloud Desktop Application (installer) version 2.4 (and earlier) is affected by an Uncontrolled Search Path Element vulnerability. An u…EPSS 2.7%7.8CVE-2021-21069Adobe creative cloud desktop application improper input validation vulnerabilityAdobe Creative Cloud Desktop Application version 5.3 (and earlier) is affected by a local privilege escalation vulnerability that could allow an atta…EPSS 2.5%

Source: NIST National Vulnerability Database (record CVE-2021-28547), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.