CVE-2021-39837

HIGH

Adobe Acrobat and Reader DC - Use-After-Free in AcroForm deleteItemAt Action

Title source: llm
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 use-after-free vulnerability in the processing of the AcroForm deleteItemAt action that could result in 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.

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 0.6430
EPSS Percentile 99.1%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (4)
adobe/acrobat 20.001.30005 - 20.004.30006
adobe/acrobat_dc 15.008.20082 - 21.005.20058
adobe/acrobat_reader 20.001.30005 - 20.004.30006
adobe/acrobat_reader_dc 15.008.20082 - 21.005.20058
Published Sep 29, 2021
Tracked Since Feb 18, 2026