CVE-2021-39838

high-risk
Published 2021-09-29

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 buttonGetCaption 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.

Do I need to act?

!
50.8% chance of exploitation in next 30 days
EPSS score — higher than 49% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Vendors

52
/ 100
high-risk
Severity 24/34 · High
Exploitability 18/34 · Moderate
Exposure 10/34 · Low