CVE-2021-28635
Last modified
CVE-2021-28635 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (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. EPSS estimates a 51.18% chance of exploitation in the next 30 days.
Description
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Acrobat Dc | >= 15.008.20082, <= 21.005.20054 |
| Adobe | Acrobat Dc | >= 17.011.30059, <= 17.011.30197 |
| Adobe | Acrobat Dc | >= 20.001.30005, <= 20.004.30005 |
| Adobe | Acrobat Reader Dc | >= 15.008.20082, <= 21.005.20054 |
| Adobe | Acrobat Reader Dc | >= 17.011.30059, <= 17.011.30197 |
| Adobe | Acrobat Reader Dc | >= 20.001.30005, <= 20.004.30005 |
References
- https://helpx.adobe.com/security/products/acrobat/apsb21-51.htmlPatch, Vendor Advisory
- https://helpx.adobe.com/security/products/acrobat/apsb21-51.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Related CVEs from 2021
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- CVE-2021-28634Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…8.2
- CVE-2021-28636Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.3
- CVE-2021-28637Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.1
- CVE-2021-28638Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.8
- CVE-2021-28639Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.8
- CVE-2021-28640Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.3
- CVE-2021-28641Acrobat Reader DC versions 2021.005.20054 (and earlier), 202…7.8
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