CVE-2020-16017: Google Chrome Use-After-Free Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-fdb7d77418dc, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- Google Chrome Use-After-Free Vulnerability
- Vendor
- Product
- Chrome
- Added to the catalog
- 2021-11-03
- Due date for US federal agencies
- 2022-05-03
- Weaknesses
- CWE-416
- Catalog version
- 2026.10.30
Google Chrome contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page.
Required action (CISA)
Apply updates per vendor instructions.
Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.
Links in CISA's notes
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2021-01-08T19:15:12.727
- Last modified
- 2026-06-17T02:57:38.610
- Weaknesses
- CWE-416
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.
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 9.6 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | [email protected] (Primary) |
| CVSS 3.1 | 9.6 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | 6.8 | MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P | [email protected] (Primary) |
References
- https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html (Release Notes, Vendor Advisory)
- https://crbug.com/1146709 (Permissions Required, Vendor Advisory)
- https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html (Release Notes, Vendor Advisory)
- https://crbug.com/1146709 (Permissions Required, Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-16017 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:41:51.476Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-16017
CVE record
- Assigner
- Chrome
- State
- PUBLISHED
- Published
- 2021-01-08T17:50:08.000Z
- Updated
- 2025-10-21T23:35:30.390Z
- Problem types
- Use after free
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.
References
- https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_11.html
- https://crbug.com/1146709
Read on 2026-11-03T01:03:46.362Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2020/16xxx/CVE-2020-16017.json
Also known as / affected packages
GHSA-gvqv-779r-4jgp
Also known as: CVE-2020-16017. OSV.dev record, GitHub advisory.
- NuGet CefSharp.Common: introduced 0, fixed 86.0.241
- NuGet CefSharp.Wpf: introduced 0, fixed 86.0.241
- NuGet CefSharp.WinForms: introduced 0, fixed 86.0.241
- NuGet CefSharp.Wpf.HwndHost: introduced 0, fixed 86.0.241
Read on 2026-11-03T00:50:43.352Z under licence ghsa-cc-by-4.0@9e5f1b3c from https://api.osv.dev/v1/vulns/GHSA-gvqv-779r-4jgp
Defensive techniques (MITRE D3FEND)
D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.
CWE-416: Use After Free
- Harden: Software Update (acts on Software)
- Harden: Trusted Library (acts on Subroutine)
- Harden: Domain Logic Validation (acts on Subroutine)
- Harden: Credential Scrubbing (acts on Subroutine)
- Model: Asset Vulnerability Enumeration (acts on Software)
- Model: Software Inventory (acts on Software)
- Restore: Restore Software (acts on Software)
- Isolate: Application-based Process Isolation (acts on Subroutine)
- Harden: Variable Initialization (acts on Subroutine)
D3FEND ontology version 1.6.0.
Read on 2026-11-02T23:56:27.750Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-416.json
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/
Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
GitHub Advisory Database via OSV.dev
GHSA-gvqv-779r-4jgp: GitHub Advisory Database, https://github.com/advisories/GHSA-gvqv-779r-4jgp. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), provided as is, without warranties. Retrieved via OSV.dev (https://osv.dev/vulnerability/GHSA-gvqv-779r-4jgp), which enriches records; fields selected and reformatted by ransomware-tracker.com.
MITRE D3FEND
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT
Cite this page
Dragons Eye Ransomware Tracker, "CVE-2020-16017: Google Chrome Use-After-Free Vulnerability",
entity page, dataset version ref-fdb7d77418dc, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2020-16017 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T02:57:38.610.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:35:30.390Z.
Underlying source: GitHub Advisory Database, GHSA-gvqv-779r-4jgp, via OSV.dev, modified 2024-12-02T05:26:24.514041Z.
Underlying source: MITRE D3FEND, ontology version 1.6.0.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.