CVE-2021-21028 — Use After Free in Adobe Acrobat Reader

CWE-416 — Use After FreeCWE-79 — Cross-site Scripting5 documents5 sources
Severity
8.8HIGHNVD
EPSS
21.2%
top 4.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Adobe Acrobat ReaderAdobe AcrobatAdobe Acrobat DC+1 more
Timeline
PublishedFeb 11

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 a Use After Free vulnerability. 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5adobe/acrobat_readerunspecified — 2020.013.20074+3
▶NVDadobe/acrobat_reader17.0 — 17.011.30188+1
▶NVDadobe/acrobat_reader_dc20.013.20074
▶NVDadobe/acrobat17.0 — 17.011.30188+1
▶NVDadobe/acrobat_dc20.013.20074

🔴Vulnerability Details

3
CVEList
Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution↗2021-02-11
▶
GHSA
Reflected Cross-site Scripting in ACS Commons↗2021-02-02
▶
OSV
Reflected Cross-site Scripting in ACS Commons↗2021-02-02
▶

🕵️Threat Intelligence

1
Zscaler
Zscaler found Adobe Security Vulnerabilities | 02-09-2020↗
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CVE-2021-21028 — Use After Free in Adobe Acrobat Reader | cvebase