CVE-2021-21086CWE-787

Adobe Reader CoolType Arbitrary Stack Manipulation

High · published September 2, 2021

CVSS v3.1
7.8
EPSS
5%
Percentile
91.8
In the wild
Unconfirmed
What it is

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Write vulnerability in the CoolType library. 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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04714 · 91.8th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2021-09-02T16:00Z
EPSS history
Timeline
  • 02 SEP 16:00Z
    Adobe Reader CoolType Arbitrary Stack Manipulation
    cvelistv5