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Fencer Vulns
medium 6.5

CVE-2020-16040 json

Insufficient data validation in V8 in Google Chrome prior to 87.0.4280.88 allowed a remote attacker to potentially exploit heap corruption…

published 2021-01-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8007

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
99.6%
EPSS 99.6% chance of exploitation in 30 days, percentile 99.9%
public exploits
2
Metasploit, Exploit-DB

Summary

Insufficient data validation in V8 in Google Chrome prior to 87.0.4280.88 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Patch / fix

  • Google Chrome 87.0.4280.88
  • chromium Debian 14, Debian 13, Debian 12 87.0.4280.88-0.1

debian advisories DEBIAN-CVE-2020-16040

  • chromium-browser Ubuntu 16.04 LTS 89.0.4389.82-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 89.0.4389.82-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2020-16040

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 73.0.3856.284-lp152.2.27.1
  • opera openSUSE Leap 15.1 NonFree 73.0.3856.284-lp151.2.39.1
  • chromium Package Hub 15 SP1 87.0.4280.88-bp151.3.147.1
  • chromium openSUSE Leap 15.1 87.0.4280.88-lp151.2.162.1
  • chromium Package Hub 15 SP2 87.0.4280.88-bp152.2.44.1
  • chromium openSUSE Leap 15.2 87.0.4280.88-lp152.2.57.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:2360-1openSUSE-SU-2020:2359-1openSUSE-SU-2020:2229-1openSUSE-SU-2020:2216-1

  • chromium Arch Linux 87.0.4280.88-1

arch linux advisories AVG-1323

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-2020-16040 updated cvss 8.8

chromium-browser: Insufficient data validation in V8

  • Red Hat All currently supported Red Hat products
    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

Timeline

  1. First public exploit (Metasploit exploit/multi/browser/chrome_simplifiedlowering_overflow)
  2. Published

Exploit prediction

99.59% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-190 Integer Overflow or Wraparound
  • CWE-787 Out-of-bounds Write
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.