Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability when executing search queries through Javascript. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Published 2021-06-28 14:15:10
Updated 2021-11-04 14:29:46
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2021-28562

  • Adobe » Acrobat Dc » Continuous Edition
    Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.001.20150
    cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
    When used together with: Apple » Macos » Version: N/A
    When used together with: Microsoft » Windows » Version: N/A
  • Adobe » Acrobat Reader Dc » Continuous Edition
    Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.001.20150
    cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
    When used together with: Apple » Macos » Version: N/A
    When used together with: Microsoft » Windows » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-28562

1.73%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-28562

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
Adobe Systems Incorporated

CWE ids for CVE-2021-28562

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: psirt@adobe.com (Primary)

References for CVE-2021-28562

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