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No exploitation reportedFix available

CVE-2020-6383

No exploitation reported by the sources we read.

  • Published2020-02-27
  • WeaknessCWE-843

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Type confusion in V8 in Google Chrome prior to 80.0.3987.116 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Timeline

dates in UTC
  1. 2020-02-2723:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-6383?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-6383?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
30.x= 30no fix published
31.x= 31no fix published
Google chrome
BranchAffectedFixed in
80.0< 80.0.3987.11680.0.3987.116

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • chromiumDebian:14all versions · fixed in 80.0.3987.116-1
  • chromiumDebian:13all versions · fixed in 80.0.3987.116-1
  • chromiumDebian:12all versions · fixed in 80.0.3987.116-1
  • chromiumDebian:10all versions · fixed in 80.0.3987.132-1~deb10u1
  • chromium-browserUbuntu:18.04:LTSall versions · fixed in 80.0.3987.149-0ubuntu0.18.04.1
  • chromium-browserUbuntu:16.04:LTSall versions · fixed in 80.0.3987.149-0ubuntu0.16.04.1
  • chromium-browserRed Hat:rhel_extras:6all versions · fixed in 0:80.0.3987.122-1.el6_10and 1 other package
  • chromium-browser-stableMageia:7all versions · fixed in 80.0.3987.122-1.mga7

1 more package range on OSV.dev

Vendor advisories

  • CVE-2020-6383 Red Hat Product Security14 products fixed

    chromium-browser: Type confusion in V8

  • RHSA-2020:0738 Red Hat Product Security14 products fixed

    Red Hat Security Advisory: chromium-browser security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2020:0738 · 14 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Chromium must be restarted for the changes to take effect.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.18.8read 2026-10-23
  • NVDCVSS 2.06.8read 2026-10-23
  • NVDweakness (CWE)CWE-843read 2026-10-23
  • FIRST EPSSEPSS score6.4 %2026-11-03
  • OSVaffected packages—

Identifiers

  • EUVD-2020-27533same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • DSA-4638-1advisory covering several CVEsDebian · LicenseRef-unstated
  • MGASA-2020-0123advisory covering several CVEsMageia · LicenseRef-unstated
  • RHSA-2020:0738advisory covering several CVEsRed Hat · CC-BY-4.0

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2020-02-27
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-6383?

Type confusion in V8 in Google Chrome prior to 80.0.3987.116 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Is CVE-2020-6383 actively exploited?

Active exploitation of CVE-2020-6383 has not been confirmed. Its EPSS score was 6.4% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-6383?

CVE-2020-6383 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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