High severity8.8NVD Advisory· Published Feb 11, 2021· Updated Jun 17, 2026
CVE-2021-21028
CVE-2021-21028
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.adobe.acs:acs-aem-commonsMaven | < 4.10.0 | 4.10.0 |
Affected products
6cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*+ 3 more
- cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*range: >=17.0,<=17.011.30188
- cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*range: <=20.013.20074
- cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*range: >=17.0,<=17.011.30188
- (no CPE)range: unspecified
- cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*Range: <=20.013.20074
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-f92j-qf46-p6vmghsaADVISORY
- helpx.adobe.com/security/products/acrobat/apsb21-09.htmlnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-21028ghsaADVISORY
- github.com/Adobe-Consulting-Services/acs-aem-commons/commit/14d769c86606c4ce9a93c47a19f87e1ad72788d6ghsaWEB
- github.com/Adobe-Consulting-Services/acs-aem-commons/security/advisories/GHSA-f92j-qf46-p6vmghsaWEB
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