CVE-2021-39860
Last modified
CVE-2021-39860 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Acrobat Pro DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive user memory. EPSS estimates a 2.34% chance of exploitation in the next 30 days.
Description
Acrobat Pro DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive user memory. 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:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Acrobat | >= 17.011.30059, <= 17.011.30199 |
| Adobe | Acrobat Reader | >= 17.011.30059, <= 17.011.30199 |
| Adobe | Acrobat | >= 20.001.30005, <= 20.004.30006 |
| Adobe | Acrobat Reader | >= 20.001.30005, <= 20.004.30006 |
| Adobe | Acrobat Dc | >= 15.008.20082, <= 21.005.20058 |
| Adobe | Acrobat Reader Dc | >= 15.008.20082, <= 21.005.20058 |
| Adobe | Acrobat Dc | >= 15.008.20082, <= 21.005.20060 |
| Adobe | Acrobat Reader Dc | >= 15.008.20082, <= 21.005.20060 |
References
- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlRelease Notes, Vendor Advisory
- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlRelease Notes, 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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