CVE-2026-9114

Description

Use after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (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 19:39 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/9xxx/CVE-2026-9114.json
Linked Threat: CVE-2026-9114 — CVE-2026-9114

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 20:16:42 UTC
NVD last modified: 2026-05-21 16:56:26 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: 0.0003 (probability of exploitation in next 30 days)
EPSS percentile: 8.20% 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-2026-31162
Assigner: Chrome
Published: May 20, 2026, 7:12:42 PM
Updated: May 21, 2026, 3:55:46 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: 0.0300
Vendors: Google
Products: Chrome (148.0.7778.179 <148.0.7778.179)
Aliases: GHSA-prq9-v8fh-p62p

ENISA description: Use after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (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-2026-9114 msrc
None Available msrc
https://issues.chromium.org/issues/495798630 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-2026-9114 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-9114 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/495798630 chrome-cve-admin@google.com Permissions Required

Remediations (13)

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

Microsoft acknowledges May 2026 Windows 11 security update install ...

web:betanews.com

Another month, another update for Windows which is problematic. This time around, it is the May 2026 Windows 11 security update - or the KB5089549 update.

2026-05-23 22:18 UTC
CVE-2026-9114 High Severity in chrome Vulnerability Details & Analysis ...

web:cvefinder.io

CVSS 8.8, high severity - Use after free in QUIC in Google Chrome on prior to 148..7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via ... Get full vulnerability details, affected versions, exploit code, EPSS score, and mitigation strategies.

2026-05-23 22:18 UTC
CISA Warns of Exploited Microsoft Defender 0-Day Flaws

web:cyberpress.org

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

2026-05-23 22:18 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 22:18 UTC
Nvd - Cve-2026-9114

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-23 22:18 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.

2026-05-23 22:18 UTC
Android Security Bulletins - Android Open Source Project

web:source.android.com

This Section contains the available Android Security Bulletins, which provide fixes for possible issues affecting Android devices.

2026-05-23 22:18 UTC
CVE-2026-9114 | Ubuntu

web:ubuntu.com

Description Use after free in QUIC in Google Chrome on prior to 148..7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: High) Read the notes from the security team

2026-05-23 22:18 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 22:18 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-23 22:18 UTC
Windows Kerberos RC4 deprecation: what will break in Active ... - 4sysops

web:4sysops.com

Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...

2026-05-26 03:00 UTC
Microsoft's April Windows update fixes 165 flaws, one exploited zero ...

web:cyberinsider.com

Microsoft has released its April 2026 Patch Tuesday updates for Windows 11 versions 24H2 and 25H2, to fix security bugs across the operating system. The security release addresses 165 flaws, including one actively exploited SharePoint spoofing flaw and multiple "more likely to be exploited" Windows bugs affecting core components.

2026-05-26 03:00 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-05-26 03:00 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-9114.json.

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