CVE-2021-39863

HIGH

Adobe Acrobat DC < 21.005.20060 - Heap Buffer Overflow

Title source: rule
STIX 2.1

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.

Exploits (2)

nomisec WORKING POC 2 stars
by lsw29475 · poc
https://github.com/lsw29475/CVE-2021-39863
nomisec WORKING POC
by WHS-SEGFAULT · poc
https://github.com/WHS-SEGFAULT/CVE-2021-39863

References (1)

Core 1
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

Scores

CVSS v3 7.8
EPSS 0.2214
EPSS Percentile 95.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-122
Status published
Products (6)
adobe/acrobat 20.001.30005 - 20.004.30006
adobe/acrobat_2017 17.011.30059 - 17.011.30199
adobe/acrobat_dc 15.008.20082 - 21.005.20060
adobe/acrobat_reader 20.001.30005 - 20.004.30006
adobe/acrobat_reader_2017 17.011.30059 - 17.011.30199
adobe/acrobat_reader_dc 15.008.20082 - 21.005.20060
Published Sep 29, 2021
Tracked Since Feb 18, 2026