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CVE-2020-6418

HIGH
8.8
CVSS Score
Published: February 27, 2020 at 10:55 PM UTC
Updated: June 17, 2026 at 03:23 AM UTC
6 products affected across 4 vendorsDebian LinuxChromeFedora

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Severity
HIGH8.8
Exploitation
CISA KEV
Exploit prediction
EPSS 79%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score78.8%

EPSS (Exploit Prediction Scoring System) estimates a 78.8% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Google Chromium V8 Engine contains a type confusion vulnerability allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Nov 3, 2021
Remediation Due
May 3, 2022
1637 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-6418

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.09.0
Fedora· Fedora Projectrpm
95%
3031
Chrome· Googlenpm
95%
v < 80.0.3987.122
Affected range stops below 80.0.3987.122, so it looks safe — our inference, not a vendor statement
Enterprise Linux Desktop· Red Hatrubygems
95%
6.0
Enterprise Linux Server· Red Hatrubygems
95%
6.0
Enterprise Linux Workstation· Red Hatrubygems
95%
6.0

References (9)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2020:0738
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html
x_refsource_MISCExploitIssue TrackingPatchVendor Advisory
Source: [email protected]
https://crbug.com/1053604
Vendor Advisoryx_refsource_FEDORARelease Notes
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/
Vendor Advisoryx_refsource_FEDORARelease Notes
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202003-08
Vendor Advisoryx_refsource_DEBIANMailing ListThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2020/dsa-4638

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-843

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