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TI-2020-12629 Aliases CVE-2020-16017GHSA-gvqv-779r-4jgp

Use after free in Google Chrome

Priority CRITICAL 100Exploited in the wildCWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

Use after free in site isolation in Google Chrome prior to 86.0.4240.198 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03
EPSS 0.0273 86th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 86.0.4240.198CefSharp.Common (NuGet): 86.0.241+3 more productsRed Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleChromebefore 86.0.4240.19886.0.4240.198Patch availableCNA
—CefSharp.Common (NuGet)before 86.0.24186.0.241Patch availableGHSA-gvqv-779r-4jgp
—CefSharp.Wpf (NuGet)before 86.0.24186.0.241Patch availableGHSA-gvqv-779r-4jgp
—CefSharp.WinForms (NuGet)before 86.0.24186.0.241Patch availableGHSA-gvqv-779r-4jgp
—CefSharp.Wpf.HwndHost (NuGet)before 86.0.24186.0.241Patch availableGHSA-gvqv-779r-4jgp
  • Chrome VendorGoogle Affected before 86.0.4240.198 Fixed in 86.0.4240.198 Patch available CNA
  • CefSharp.Common (NuGet) Vendor— Affected before 86.0.241 Fixed in 86.0.241 Patch available GHSA-gvqv-779r-4jgp
  • CefSharp.Wpf (NuGet) Vendor— Affected before 86.0.241 Fixed in 86.0.241 Patch available GHSA-gvqv-779r-4jgp
  • CefSharp.WinForms (NuGet) Vendor— Affected before 86.0.241 Fixed in 86.0.241 Patch available GHSA-gvqv-779r-4jgp
  • CefSharp.Wpf.HwndHost (NuGet) Vendor— Affected before 86.0.241 Fixed in 86.0.241 Patch available GHSA-gvqv-779r-4jgp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 86.0.4240.198VulnerableGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 86.0.4240.198 Vulnerable ·Google

Remediation

  • Fix · CNA Chrome (Google) Fixed in 86.0.4240.198
  • Fix · GHSA-gvqv-779r-4jgp CefSharp.Common (NuGet) Fixed in 86.0.241 Advisory →
  • Fix · GHSA-gvqv-779r-4jgp CefSharp.Wpf (NuGet) Fixed in 86.0.241 Advisory →
  • Fix · GHSA-gvqv-779r-4jgp CefSharp.WinForms (NuGet) Fixed in 86.0.241 Advisory →
  • Fix · GHSA-gvqv-779r-4jgp CefSharp.Wpf.HwndHost (NuGet) Fixed in 86.0.241 Advisory →

Red Hat 1 advisory

  • RHSA-2020:5165 Released 2020-11-23 · Red Hat rating Important
    chromium-browser security update
    • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-86.0.4240.198-1.el6_10
    • Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser-86.0.4240.198-1.el6_10
    • Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-86.0.4240.198-1.el6_10
    • Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-86.0.4240.198-1.el6_10

Fixed in the same release

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

  • Release ·

    Google Chrome 86.0.4240.198

    2 records Highest priority Priority CRITICAL 2 CRITICAL

    Other records, highest priority first

    • TI-2020-12625 Out-of-bounds write in Google ChromePriority CRITICAL 97
    Show all 2 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop Supplementary (v. 6)Fixed RHSA-2020:5165
Red Hat Enterprise Linux HPC Node Supplementary (v. 6)Fixed RHSA-2020:5165
Red Hat Enterprise Linux Server Supplementary (v. 6)Fixed RHSA-2020:5165
Red Hat Enterprise Linux Workstation Supplementary (v. 6)Fixed RHSA-2020:5165

Timeline

  1. 2021-11-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2020-16017
  3. 2026-10-03 Alias added: GHSA-gvqv-779r-4jgp

References

Advisory 3

Other 1

  • 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