CVE-2020-6443

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-13 · updated 2026-06-17
Weakness: CWE-345

Description

Insufficient data validation in developer tools in Google Chrome prior to 81.0.4044.92 allowed a remote attacker who had convinced the user to use devtools to execute arbitrary code via a crafted HTML page.

Affected products

Debian Linux: 9.0, 10.0
Fedoraproject Fedora: 30, 31, 32
Google Chrome: before 81.0.4044.92 — fixed in 81.0.4044.92
openSUSE Backports: sle-15-sp1
openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Google Chrome 81.0.4044.92. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html
https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_7.html
https://crbug.com/1040080
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XWIVVYIQU67QR2LHNGGZBS4FZOW2RQO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HFVP775RPRDVY5FUCN7ABH5AE74TQFDD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMXPDHEEACPD3BCMTC26SCCYB2ZMUOAO/
https://www.debian.org/security/2020/dsa-4714
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html
https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_7.html
https://crbug.com/1040080

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