CVE-2020-6518

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-07-22 · updated 2026-06-17
Weakness: CWE-416

Description

Use after free in developer tools in Google Chrome prior to 84.0.4147.89 allowed a remote attacker who had convinced the user to use developer tools to potentially exploit heap corruption via a crafted HTML page.

Affected products

Debian Linux: 10.0
Fedoraproject Fedora: 31, 32
Google Chrome: before 84.0.4147.89 — fixed in 84.0.4147.89
openSUSE Backports Sle: 15.0-sp2
openSUSE Leap: 15.1, 15.2

How to fix

Upgrade to a fixed version: Google Chrome 84.0.4147.89. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00069.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00041.html
https://chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html
https://crbug.com/986051
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTRPPTKZ2RKVH2XGQCWNFZ7FOGQ5LLCA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYIDWCHG24ZTFD4P42D4A4WWPPA74BCG/
https://security.gentoo.org/glsa/202007-08
https://security.gentoo.org/glsa/202101-30
https://www.debian.org/security/2021/dsa-4824
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00069.html

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