CVE-2021-21148

high-risk
Published 2021-02-09

Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Do I need to act?

!
24.9% chance of exploitation in next 30 days
EPSS score — higher than 75% of all CVEs
!
CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Debian Google Fedoraproject

References (15)

Third Party Advisory http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
Release Notes https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_...
Permissions Required https://crbug.com/1170176
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 https://security.gentoo.org/glsa/202104-08
Mailing List https://www.debian.org/security/2021/dsa-4858
Third Party Advisory http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
Release Notes https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_...
Permissions Required https://crbug.com/1170176
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 https://security.gentoo.org/glsa/202104-08
Mailing List https://www.debian.org/security/2021/dsa-4858
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
62
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 22/34 · High
Exposure 10/34 · Low