CVE-2020-15963

high-risk

Published 2020-09-21

Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.

Do I need to act?

1.4% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.6/10 Critical

NETWORK / LOW complexity

Affected Products (9)

Chrome

Backports Sle

Leap

Fedora

Debian Linux

Affected Vendors

Debian Google Fedoraproject Opensuse

References (24)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00087.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00095.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00096.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html

Release Notes https://chromereleases.googleblog.com/2020/09/stable-channel-update-for-desktop_...

Exploit https://crbug.com/1113558

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202009-13

Third Party Advisory https://security.gentoo.org/glsa/202101-30

Third Party Advisory https://www.debian.org/security/2021/dsa-4824

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00087.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00095.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00096.html

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html

Release Notes https://chromereleases.googleblog.com/2020/09/stable-channel-update-for-desktop_...

Exploit https://crbug.com/1113558

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

and 4 more references

/ 100

high-risk

Severity 32/34 · Critical

Exploitability 4/34 · Minimal

Exposure 15/34 · Moderate