Vulnerability Details : CVE-2021-28634
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Improper Neutralization of Special Elements used in an OS Command. An authenticated attacker could leverage this vulnerability to achieve arbitrary code execution on the host machine in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Products affected by CVE-2021-28634
- Adobe » Acrobat Dc » Classic EditionVersions from including (>=) 20.001.30005 and up to, including, (<=) 20.004.30005cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Dc » Continuous EditionVersions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20054cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
- Adobe » Acrobat Dc » Classic EditionVersions from including (>=) 17.011.30059 and up to, including, (<=) 17.011.30197cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Reader Dc » Continuous EditionVersions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20054cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
- Adobe » Acrobat Reader Dc » Classic EditionVersions from including (>=) 20.001.30005 and up to, including, (<=) 20.004.30005cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Reader Dc » Classic EditionVersions from including (>=) 17.011.30059 and up to, including, (<=) 17.011.30197cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28634
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 22 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28634
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.5
|
HIGH | AV:N/AC:M/Au:S/C:C/I:C/A:C |
6.8
|
10.0
|
NIST | |
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
Adobe Systems Incorporated |
CWE ids for CVE-2021-28634
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: psirt@adobe.com (Primary)
References for CVE-2021-28634
-
https://helpx.adobe.com/security/products/acrobat/apsb21-51.html
Adobe Security BulletinPatch;Vendor Advisory
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