Back to Database
Status published
High
CVE-2021-21045
Acrobat Reader DC Improper Installer Access Control Vulnerability Could Lead To Privilege Escalation
Vulnerability Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an improper access control vulnerability. An unauthenticated attacker could leverage this vulnerability to elevate privileges in the context of the current user.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-21045
Credits & Attribution
No credits recorded in the NVD database.
More from Adobe
View All →CVE-2025-64899
Acrobat Reader | Out-of-bounds Read (CWE-125)
High
7.8
CVE-2025-64898
ColdFusion | Insufficiently Protected Credentials (CWE-522)
Medium
5.3
CVE-2025-64897
ColdFusion | Improper Access Control (CWE-284)
Medium
5.6
CVE-2025-64896
Creative Cloud Desktop | Creation of Temporary File in Directory with Incorrect Permissions (CWE-379)
Medium
5.5
CVE-2025-64894
DNG SDK | Integer Overflow or Wraparound (CWE-190)
Medium
5.5
Affected Vendor
Adobe
View all reports →Affected Software
Acrobat Reader
Vulnerable Versions:
unspecified
Timeline
Official Publish:
February 11th, 2021
Last Modified:
September 16th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H