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Fencer Vulns
critical 9.6

CVE-2020-16011 in the critical feed json

Heap buffer overflow in UI in Google Chrome on Windows prior to 86.0.4240.183 allowed a remote attacker who had compromised the renderer pr…

published 2020-11-03 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7980

cvss
9.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Heap buffer overflow in UI in Google Chrome on Windows prior to 86.0.4240.183 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Patch / fix

  • Google Chrome 86.0.4240.183
  • chromium-browser Ubuntu 16.04 LTS 86.0.4240.198-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 86.0.4240.198-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-16011

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
  • opera openSUSE Leap 15.2 NonFree, openSUSE Leap 15.1 NonFree 72.0.3815.320-lp152.2.21.1
  • chromium Package Hub 15 SP1 86.0.4240.183-bp151.3.125.1
  • chromium Package Hub 15 SP1, openSUSE Leap 15.2, openSUSE Leap 15.1 86.0.4240.183-bp151.3.119.1
  • gn Package Hub 15 SP2 0.1807-bp152.2.3.4
  • chromium Package Hub 15 SP2 86.0.4240.183-bp152.2.26.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:1952-1openSUSE-SU-2020:1937-1openSUSE-SU-2020:1831-1openSUSE-SU-2020:1829-1

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-2020-16011 updated cvss 8.8

chromium-browser: Heap buffer overflow in UI on Windows

  • 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

2.41% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Google Chrome

Classification

Weakness
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.