CISA KEV · Known exploitedCritical

CVE-2020-15999

Google Chrome FreeType

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.

CVSS
9.6
EPSS
50.6%
98.8% percentile
CISA KEV
Listed
Published
2020.11.03
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability50.6%
Technical severityCVSS 9.6

Vulnerability overview

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.

Affected product and versions

Product
Google Chrome FreeType
Affected versions
unspecified, < 86.0.4240.111, >= 2.6.0 < 2.10.4, 10.0, 31, 15.0
Fixed versions
86.0.4240.111, 2.10.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2021.11.17
  1. 1
    Identify

    Confirm that Google Chrome FreeType and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE
CWE-120, CWE-787
KEV added
2021.11.03
Ransomware use
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