CVE-2021-30632

high-risk
Published 2021-10-08

Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Do I need to act?

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84.9% chance of exploitation in next 30 days
EPSS score — higher than 15% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Google Fedoraproject

References (11)

Third Party Advisory http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.h...
Release Notes https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop....
Permissions Required https://crbug.com/1247763
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.h...
Release Notes https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop....
Permissions Required https://crbug.com/1247763
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
66
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 27/34 · High
Exposure 9/34 · Low