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Fencer Vulns
high 7.8

CVE-2020-6477 json

Inappropriate implementation in installer in Google Chrome on OS X prior to 83.0.4103.61 allowed a local attacker to perform privilege esca…

published 2020-05-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27627

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

Inappropriate implementation in installer in Google Chrome on OS X prior to 83.0.4103.61 allowed a local attacker to perform privilege escalation via a crafted file.

Patch / fix

  • Google Chrome 83.0.4103.61
  • chromium-browser Ubuntu 16.04 LTS 84.0.4147.105-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 83.0.4103.61-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-6477

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 15 SP1 83.0.4103.97-bp151.3.85.1
  • chromium openSUSE Leap 15.1 83.0.4103.97-lp151.2.96.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:0832-1openSUSE-SU-2020:0823-1

  • chromium Arch Linux 83.0.4103.61-1

arch linux advisories AVG-1167

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-6477 updated cvss 7.8

chromium-browser: Inappropriate implementation in installer

  • Red Hat Enterprise Linux 6 chromium-browser
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.