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TI-2020-12633 Aliases CVE-2020-16021GHSA-q9gg-5799-8666

Race condition in Google Chrome

Priority LOW 34CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

Race in image burner in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to perform OS-level privilege escalation via a malicious file.

Why it matters now

EPSS 0.00638 50th percentileScored 2026-11-07
Fix Partial Chrome (Google): 87.0.4280.66Red Hat: 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleChromebefore 87.0.4280.6687.0.4280.66Patch availableCNA
  • Chrome VendorGoogle Affected before 87.0.4280.66 Fixed in 87.0.4280.66 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 87.0.4280.66VulnerableGoogle
cpe:2.3:o:google:chrome_os:-:*:*:*:*:*:*:*not specified by NVDRunning onGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 87.0.4280.66 Vulnerable ·Google
  • cpe:2.3:o:google:chrome_os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google

Remediation

  • Fix · CNA Chrome (Google) Fixed in 87.0.4280.66

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Google Chrome 87.0.4280.66

    22 records Highest priority Priority MEDIUM 13 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2020-12637 Out-of-bounds write in Google ChromePriority MEDIUM 46
    • TI-2020-12636 Out-of-bounds write in Google ChromePriority MEDIUM 45
    • TI-2020-12630 Use after free in Google ChromePriority MEDIUM 44
    Show all 22 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16021
  2. 2026-10-03 Alias added: GHSA-q9gg-5799-8666
  3. 2026-10-24 EPSS moved to the 50th–90th percentile

References

Advisory 2

  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
See all 7586 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences