CVE-2026-9120

Description

Use after free in WebRTC in Google Chrome prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

Overview

State: PUBLISHED
Assigner (CNA): Chrome
CVSS severity: high
CVSS score: 8.8 / 10
CVSS vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Effective score: 8.8 / 10 HIGH source: CNA overview
CWE(s): CWE-416
Reserved: 2026-05-20
Published: 2026-05-20 19:12 UTC
Last updated: 2026-05-20 19:35 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/9xxx/CVE-2026-9120.json
Linked Threat: CVE-2026-9120 — CVE-2026-9120

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-20 20:16:43 UTC
NVD last modified: 2026-05-21 16:41:34 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0002 (probability of exploitation in next 30 days)
EPSS percentile: 6.57% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-31169
Assigner: Chrome
Published: May 20, 2026, 7:12:45 PM
Updated: May 21, 2026, 3:55:49 AM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0200
Vendors: Google
Products: Chrome (148.0.7778.179 <148.0.7778.179)
Aliases: GHSA-p85v-6f3q-83wg

ENISA description: Use after free in WebRTC in Google Chrome prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)

EUVD references (2)

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-07-28 03:00 UTC (source: CVRF).

Release: 2026-May

Microsoft remediations / KB articles (2)

Release Notes — Vendor Fix / Security Update (fixed build 148.0.3967.83)
https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security — None Available / Release Notes

Microsoft FAQ (2)

What is the version information for this release?

Microsoft Edge Version	Date Released	Based on Chromium Version
148.0.3967.83	05/21/2026	148.0.7778.180

Why is this Chrome CVE included in the Security Update Guide?

The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable.

How can I see the version of the browser?

In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window
Click on Help and Feedback
Click on About Microsoft Edge

Affected products (1)

Vendor	Product	Versions	Platforms
Google	Chrome	`148.0.7778.179` (affected)	—

Affected products — CPE 2.3 (4) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

Web references (7)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

MSRC update guide: CVE-2026-9120 msrc
None Available msrc
https://issues.chromium.org/issues/504620824 tenable:issues.chromium.org
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html tenable:chromereleases.googleblog.com
https://nvd.nist.gov/vuln/detail/CVE-2026-9120 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-9120 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html chrome-cve-admin@google.com Vendor Advisory
https://issues.chromium.org/issues/504620824 chrome-cve-admin@google.com Permissions Required

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-9120 - Vulnerability Details - OpenCVE

web:app.opencve.io

The vulnerability is not listed in the CISA KEV catalog, indicating no known exploits at this time. However, because the flaw grants full control of the client process the potential damage is severe, and the lack of mitigation in older Chrome releases creates a high‑risk target for attackers. Generated by OpenCVE AI on May 20, 2026 at 22:05 UTC.

2026-05-23 22:19 UTC
Critical Chrome Vulnerabilities Enables Remote Code Execution Attacks ...

web:cybersecuritynews.com

Google released a critical Chrome update fixing multiple high-risk vulnerabilities that could enable arbitrary code execution.

2026-05-23 22:19 UTC
CVE-2026-9120 | Security Details | Sonatype Guide

web:guide.sonatype.com

Technical security analysis for CVE-2026-9120 . CVSS 8.8 severity. View CVSS vectors, CWE classifications, and exploit maturity ratings.

2026-05-23 22:19 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-05-23 22:19 UTC
CVE-2026-9120 : Use After Free Vulnerability in WebRTC for Google Chrome

web:securityvulnerability.io

What is CVE-2026-9120 ? A use after free vulnerability has been identified in the WebRTC component of Google Chrome, which allows remote attackers to execute arbitrary code on affected installations through specially crafted HTML pages. This security flaw underscores the importance of promptly updating your browser to protect against potential exploitations.

2026-05-23 22:19 UTC
CVE-2026-9120 | Ubuntu

web:ubuntu.com

Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.

2026-05-23 22:19 UTC
Latest Windows Update Problems and How to Fix Them

web:www.maketecheasier.com

Check out the latest Windows 11 and Windows 10 update problems and their solutions, as recommended by Microsoft experts.

2026-05-23 22:19 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-23 22:19 UTC
CVE-2026-9120 - High Vulnerability - TheHackerWire

web:www.thehackerwire.com

How do I fix or mitigate CVE-2026-9120 ? To protect against CVE-2026-9120 , you should: (1) Apply the latest security patches from the vendor, (2) Check official security advisories for specific remediation steps, (3) Update affected software to the latest version, and (4) Monitor your systems for any signs of exploitation.

2026-05-23 22:19 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-05-23 22:19 UTC
CVE Vault - CVE Database & Security Research Hub

web:cvevault.com

CVE Vault - Search and explore Common Vulnerabilities and Exposures ( CVE ) database. Find security vulnerabilities by CVE ID, vendor, severity, and year. Stay secure with comprehensive CVE information.

2026-05-26 02:59 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-26 02:59 UTC
Critical Patches Issued for Microsoft Products, May 12, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-05-26 02:59 UTC
CVE: Common Vulnerabilities and Exposures

web:www.cve.org

At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

2026-05-26 02:59 UTC
Microsoft KB Catalog: Updates, Issues, & Feedback - NinjaOne

web:www.ninjaone.com

Catalog of Microsoft KB updates with insights on performance & user sentiment. Find out what's working, what's not, & make informed decisions.

2026-05-26 02:59 UTC
National Vulnerability Database | NIST

web:www.nist.gov

NIST maintains the National Vulnerability Database (NVD), a repository of information on software and hardware flaws that can compromise computer security. This is a key piece of the nation's cybersecurity infrastructure.

2026-05-26 02:59 UTC
Microsoft Authenticator Flaw on Android, iOS Could Leak ... - TechRepublic

web:www.techrepublic.com

A vulnerability in Microsoft Authenticator for Android and iOS could expose login codes to malicious apps on the same device. Microsoft has released a patch .

2026-05-26 02:59 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-9120.json.

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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-20T19:35:52.371419Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "product": "Chrome",
          "vendor": "Google",
          "versions": [
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  "cveMetadata": {
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    "dateReserved": "2026-05-20T17:39:24.115Z",
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