CVE-2021-21086

moderate-risk
Published 2021-09-02

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.

Do I need to act?

!
11.8% chance of exploitation in next 30 days
EPSS score — higher than 88% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (4)

Affected Vendors

Adobe

References (2)

Vendor Advisory https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
Vendor Advisory https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
45
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 11/34 · Low
Exposure 10/34 · Low