CVE-2020-6418 kev in the critical feed json
Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted…
published 2020-02-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27568
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2021-11-03
- epss
- 78.8%
- EPSS 78.8% chance of exploitation in 30 days, percentile 99.5%
- public exploits
- 2
- Metasploit, Exploit-DB
Summary
Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Patch / fix
cisa required action Apply updates per vendor instructions.
- Google Chrome 80.0.3987.122
- chromium Debian 14, Debian 13, Debian 12 80.0.3987.122-1
debian advisories DEBIAN-CVE-2020-6418
- chromium-browser Ubuntu 16.04 LTS 80.0.3987.149-0ubuntu0.16.04.1
- chromium-browser Ubuntu 18.04 LTS 80.0.3987.149-0ubuntu0.18.04.1
ubuntu advisories UBUNTU-CVE-2020-6418
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-browser RHEL 6 EXTRAS 80.0.3987.122-1.el6_10
red hat advisories RHSA-2020:0738
- chromium openSUSE Tumbleweed 93.0.4577.82-1.1
- chromium openSUSE Tumbleweed 113.0.5672.92-1.1
- chromium openSUSE Leap 15.1 80.0.3987.122-lp151.2.66.1
- chromium Package Hub 12 SP3 80.0.3987.122-34.1
opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2020:0259-1openSUSE-SU-2020:0245-1
- chromium Arch Linux 80.0.3987.122-1
arch linux advisories AVG-1102
- crbug.com/1053604 advisory
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-2020-6418 updated cvss 8.8
chromium-browser: Type confusion in V8
-
Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 80.0.3987.122-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 80.0.3987.122-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 80.0.3987.122-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 80.0.3987.122-1.el6_10fixed: vendor fix RHSA-2020:0738
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
- Found exploited as a 0-day (Project Zero)
- First public exploit (Metasploit exploit/multi/browser/chrome_jscreate_sideeffect)
- 0-day patched (Project Zero)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 5 y ago
- Patch by
- 2022-05-03 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Google, Chromium V8
- CISA name
- Google Chromium V8 Type Confusion Vulnerability
Zero-day
Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.
- Found
- 2020-02-18
- Patched
- 2020-02-24
- Details
- project zero root cause analysis
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
78.81% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/multi/browser/chrome_jscreate_sideeffect Google Chrome 80 JSCreate side-effect type confusion exploit metasploit exploit, manual rank, 2020-02-19
- EDB-48186 Google Chrome 80 - JSCreate Side-effect Type Confusion (Metasploit) remote, 2020-03-09
- crbug.com https://crbug.com/1053604 referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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
-
- CWE-843 Access of Resource Using Incompatible Type
- Technology feeds
References
-
crbug.com
/1053604
exploit, issue-tracking, patch, vendor-advisory
-
packetstormsecurity.com
/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html
exploit, third-party-advisory, vdb-entry
-
access.redhat.com
/errata/RHSA-2020:0738
vendor-advisory, third-party-advisory
-
debian.org
/security/2020/dsa-4638
vendor-advisory, mailing-list, third-party-advisory
-
security.gentoo.org
/glsa/202003-08
vendor-advisory, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/
vendor-advisory, release-notes
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/
vendor-advisory, release-notes
-
chromereleases.googleblog.com
/2020/02/stable-channel-update-for-desktop_24.html
release-notes, vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-6418
government-resource, us-government-resource
Sources
- CVE List CVE-2020-6418
- NVD CVE-2020-6418
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.