What’s Vulnerable › Vulnerabilities

CVE-2020-6456

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% 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-276

Description

Insufficient validation of untrusted input in clipboard in Google Chrome prior to 81.0.4044.92 allowed a local attacker to bypass site isolation via crafted clipboard contents.

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/1040755
• 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/1040755

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