CVE-2020-6463

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 88.3% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-21 03:46Z6 YR AGO

Last updated

2024-08-04 09:02Z2 YR AGO

Reserved

2020-01-08

Assigning CNA

Chrome

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

ada1565928681cf7977d441af95543f2fa9d1cbfc3d3a80065266681b0e45232

• chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_21.htmlx_refsource_MISC
• crbug.comhttps://crbug.com/1065186x_refsource_MISC
• lists.opensuse.orgopenSUSE-SU-2020:0823http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:0832http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.htmlvendor-advisoryx_refsource_SUSE
• lists.fedoraproject.orgFEDORA-2020-08561721adhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4714https://www.debian.org/security/2020/dsa-4714vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2020-77f89ab772https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT/vendor-advisoryx_refsource_FEDORA
• lists.debian.org[debian-lts-announce] 20200729 [SECURITY] [DLA 2297-1] firefox-esr security updatehttps://lists.debian.org/debian-lts-announce/2020/07/msg00027.htmlmailing-listx_refsource_MLIST
• security.gentoo.orgGLSA-202007-60https://security.gentoo.org/glsa/202007-60vendor-advisoryx_refsource_GENTOO
• www.debian.orgDSA-4736https://www.debian.org/security/2020/dsa-4736vendor-advisoryx_refsource_DEBIAN
• security.gentoo.orgGLSA-202007-64https://security.gentoo.org/glsa/202007-64vendor-advisoryx_refsource_GENTOO
• lists.debian.org[debian-lts-announce] 20200802 [SECURITY] [DLA 2310-1] thunderbird security updatehttps://lists.debian.org/debian-lts-announce/2020/08/msg00006.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4740https://www.debian.org/security/2020/dsa-4740vendor-advisoryx_refsource_DEBIAN
• lists.opensuse.orgopenSUSE-SU-2020:1147http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00008.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1155http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00011.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1179http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1189http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1205http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.htmlvendor-advisoryx_refsource_SUSE
• usn.ubuntu.comUSN-4443-1https://usn.ubuntu.com/4443-1/vendor-advisoryx_refsource_UBUNTU