CVE-2021-21806
CVSS v3
8.8
HIGH
EPSS Score
2.1 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Technical details
- Published
- 2021-07-08
Frequently asked questions
What is CVE-2021-21806?
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Is CVE-2021-21806 actively exploited?
Active exploitation of CVE-2021-21806 has not been confirmed. The EPSS score is 2.1%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-21806?
CVE-2021-21806 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-21806 affecting your environment?
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