Vulnerability Details : CVE-2021-21089
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 out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally escalate privileges 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-2021-21089
- Adobe » Acrobat Dc » Classic EditionVersions from including (>=) 17.011.30158 and up to, including, (<=) 17.011.30188cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Dc » Classic EditionVersions from including (>=) 20.001.30005 and up to, including, (<=) 20.001.30018cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Dc » Continuous EditionVersions from including (>=) 20.006.20034 and up to, including, (<=) 20.013.20074cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
- Adobe » Acrobat Reader Dc » Continuous EditionVersions from including (>=) 20.006.20034 and up to, including, (<=) 20.013.20074cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
- Adobe » Acrobat Reader Dc » Classic EditionVersions from including (>=) 17.011.30158 and up to, including, (<=) 17.011.30188cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Reader Dc » Classic EditionVersions from including (>=) 20.001.30005 and up to, including, (<=) 20.001.30018cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21089
0.71%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21089
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
3.3
|
LOW | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
1.8
|
1.4
|
Adobe Systems Incorporated |
CWE ids for CVE-2021-21089
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: psirt@adobe.com (Primary)
References for CVE-2021-21089
-
https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
Adobe Security BulletinRelease Notes;Vendor Advisory
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