CVE-2021-21017

Known Exploited
Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution

Description

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. 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.

Categories

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 90.59% Top 5%
KEV Since 
Vendor Advisory adobe.com
Affected: Adobe Acrobat Reader
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-21017?
CVE-2021-21017 has been scored as a high severity vulnerability.
How to fix CVE-2021-21017?
To fix CVE-2021-21017, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21017 being actively exploited in the wild?
It is confirmed that CVE-2021-21017 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~91% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21017?
CVE-2021-21017 affects Adobe Acrobat Reader.
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