CVE-2020-6551
Use after free in WebXR in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 27.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Use after free in WebXR in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 27.74% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-787
- Affected
- google/chrome · debian/debian linux · fedoraproject/fedora
- Source
- chrome-cve-admin@google.com
EPSS 27.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/159611/Chrome-XRSystem-FocusedFrameChanged-and-FocusController-NotifyFocusChangedObservers-Use-After-Free.htmlThird Party Advisory, VDB Entry
- https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1107815Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/
- https://security.gentoo.org/glsa/202101-30Third Party Advisory
- https://www.debian.org/security/2021/dsa-4824Third Party Advisory
- http://packetstormsecurity.com/files/159611/Chrome-XRSystem-FocusedFrameChanged-and-FocusController-NotifyFocusChangedObservers-Use-After-Free.htmlThird Party Advisory, VDB Entry
- https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1107815Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/
- https://security.gentoo.org/glsa/202101-30Third Party Advisory
- https://www.debian.org/security/2021/dsa-4824Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.