Path traversal in Adobe Reader and Adobe Acrobat - CVE-2021-21037
Published: February 9, 2021
Vulnerability identifier: #VU50532
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21037
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within PDF files. A remote attacker can create a specially crafted PDF file, trick the victim into opening it and overwrite arbitrary files on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.
Affected software
Adobe Reader
Adobe Acrobat
Adobe Acrobat
How to mitigate CVE-2021-21037
Install updates from vendor's website.
Adobe Reader - addressed in versions 17.011.30190, 20.001.30020, 21.001.20135
Adobe Acrobat - addressed in versions 17.011.30190, 20.001.30020, 21.001.20135
Adobe Acrobat - addressed in versions 17.011.30190, 20.001.30020, 21.001.20135