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CVE-2020-15999

Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Published: Nov 3, 2020Updated: Oct 24, 2025 Sources: CVE List NVD GHSA BDU csafCWE-787
NVD MITRE
9.6CVSSCRITICAL
EPSS Score
50.6%
Top 1.2%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
2 Known
Remediation
Patch Available

Description

Heap buffer overflow in CefSharp

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-787CWE-120

Affected Products

CefSharp.CommonNuGetOSS Libraries
CefSharp.WpfNuGetOSS Libraries
CefSharp.WinFormsNuGetOSS Libraries
CefSharp.Wpf.HwndHostNuGetOSS Libraries
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
nugetpackage-ecosystemOSS Libraries
canonical ltd.commercialGBOperating Systemsaka canonical
and 18 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:Nov 17, 2021

Required action: Apply updates per vendor instructions.

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/cefsharp/CefSharp/security/advisories/GHSA-pv36-h7jh-qm62
github.com
https://nvd.nist.gov/vuln/detail/CVE-2020-15999
nvd.nist.gov
https://www.nuget.org/packages/CefSharp.Wpf.HwndHost
nuget.org
and 49 more references View all →

Timeline

Published
Nov 3, 2020
Added to CISA KEV
Nov 3, 2021
Last Updated
Oct 24, 2025

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