CVE-2021-28546
Last modified
CVE-2021-28546 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are missing support for an integrity check. An unauthenticated attacker could leverage this vulnerability to modify content in a certified PDF without invalidating the certification. EPSS estimates a 1.42% chance of exploitation in the next 30 days.
Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are missing support for an integrity check. An unauthenticated attacker could leverage this vulnerability to modify content in a certified PDF without invalidating the certification. Exploitation of this issue requires user interaction in that a victim must open the tampered file.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Acrobat | >= 17.011.30059, <= 17.011.30188 |
| Adobe | Acrobat | >= 20.001.30005, <= 20.001.30018 |
| Adobe | Acrobat Dc | >= 15.008.20082, <= 20.013.20074 |
| Adobe | Acrobat Reader | >= 17.011.30059, <= 17.011.30188 |
| Adobe | Acrobat Reader | >= 20.001.30005, <= 20.001.30018 |
| Adobe | Acrobat Reader Dc | >= 15.008.20082, <= 20.013.20074 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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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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