Vulnerability Description
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted PDF file. 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Acrobat Dc | >= 15.008.20082, <= 21.005.20060 |
| Microsoft | Windows | - |
| Apple | Macos | - |
| Adobe | Acrobat Reader Dc | >= 15.008.20082, <= 21.005.20060 |
| Adobe | Acrobat | >= 20.001.30005, <= 20.004.30006 |
| Adobe | Acrobat Reader | >= 20.001.30005, <= 20.004.30006 |
| Adobe | Acrobat 2017 | >= 17.011.30059, <= 17.011.30199 |
| Adobe | Acrobat Reader 2017 | >= 17.011.30059, <= 17.011.30199 |
Related Weaknesses (CWE)
References
- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlRelease NotesVendor Advisory
- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlRelease NotesVendor Advisory
FAQ
What is CVE-2021-39863?
CVE-2021-39863 is a vulnerability with a CVSS score of 7.8 (HIGH). Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted ...
How severe is CVE-2021-39863?
CVE-2021-39863 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39863?
Check the references section above for vendor advisories and patch information. Affected products include: Adobe Acrobat Dc, Microsoft Windows, Apple Macos, Adobe Acrobat Reader Dc, Adobe Acrobat.