CVE-2026-8548

Description

Out of bounds write in Media in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Overview

State: PUBLISHED
Assigner (CNA): Chrome
CVSS severity: high
CVSS score: 8.3 / 10
CVSS vector: AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Effective score: 8.3 / 10 HIGH source: CNA overview
CWE(s): CWE-787
Reserved: 2026-05-14
Published: 2026-05-14 21:52 UTC
Last updated: 2026-05-15 11:55 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/8xxx/CVE-2026-8548.json
Linked Threat: CVE-2026-8548 — CVE-2026-8548

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: 2026-05-14 20:17:15 UTC
NVD last modified: 2026-05-19 17:02:58 UTC
NVD CVSS v3.1: 8.3 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Exploitability subscore: 1.6 / 10
Impact subscore: 6.0 / 10
EPSS score: 0.0009 (probability of exploitation in next 30 days)
EPSS percentile: 25.68% 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-2026-30460
Assigner: Chrome
Published: May 14, 2026, 7:52:25 PM
Updated: May 15, 2026, 9:55:34 AM
EUVD base score (CVSS 3.1): 8.3 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EUVD-reported EPSS: 0.0900
Vendors: Google
Products: Chrome (148.0.7778.168 <148.0.7778.168)
Aliases: GHSA-39w8-2393-mh75

ENISA description: Out of bounds write in Media in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape 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 148.0.3967.70)
https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security — None Available / Release Notes

Microsoft FAQ (2)

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

What is the version information for this release?

Microsoft Edge Version	Date Released	Based on Chromium Version
148.0.3967.70	05/15/2026	148.0.7778.168

Affected products (1)

Vendor	Product	Versions	Platforms
Google	Chrome	`148.0.7778.168` (affected)	—

Affected products — CPE 2.3 (1) 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:*:*:*:*:*:*:*:*

Vendor references (2)

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

MITRE references (2) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (8)

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

None Available msrc
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8548 rapid7:msrc.microsoft.com
https://attackerkb.com/topics/CVE-2026-8548 rapid7:attackerkb.com
http://cwe.mitre.org/data/definitions/787.html rapid7:cwe.mitre.org
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30460 rapid7:euvd.enisa.europa.eu
https://www.first.org/epss/ tenable:www.first.org
https://nvd.nist.gov/vuln/detail/CVE-2026-8548 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-8548 tenable:www.cve.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_12.html chrome-cve-admin@google.com ProductVendor Advisory
https://issues.chromium.org/issues/497821764 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.

CVE-2026-8548 - Vulnerability Details - OpenCVE

web:app.opencve.io

Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Update Chrome to version 148..7778.168 or later as released by Google.

2026-05-23 20:52 UTC
Google Chrome 148 Released with 127 Security Fixes, Three Critical ...

web:cybersecuritynews.com

Google has officially promoted Chrome 148 to the stable channel for Windows, Mac, and Linux, rolling out version 148..7778.96 for Linux and 148..7778.96/97 for Windows and Mac, one of the most security-intensive releases in the browser's recent history, packing 127 security fixes in a single update.

2026-05-23 20:52 UTC
Nvd - Cve-2026-8548

web:nvd.nist.gov

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

2026-05-23 20:52 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 20:52 UTC
KB5089548: May 2026 Security Fixes - Windows 11 26H1 (2026)

web:www.anavem.com

KB5089548 — May 2026 Security Update for Windows 11 version 26H1 KB5089548 is a May 2026 security update that addresses multiple vulnerabilities in Windows 11 version 26H1, including critical fixes for Windows Kernel, Microsoft Edge WebView2, and Windows Graphics components.

2026-05-23 20:52 UTC
Emergency patch issued for Microsoft Office, 365 over hacking threat - MSN

web:www.msn.com

Microsoft suggests the threat is being used in phishing attacks against vulnerable systems since successful exploitation requires local access to the PC.

2026-05-23 20:52 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 20:52 UTC
Rapid7 Vulnerability Database

web:www.rapid7.com

vulnerability Google Chrome Vulnerability: CVE-2026-8548 Out of bounds write in Media

2026-05-23 20:52 UTC
CVE-2026-8548 - High Vulnerability - TheHackerWire

web:www.thehackerwire.com

CVE-2026-8548 is a High severity vulnerability (CVSS 8.3). Out of bounds write in Media in Google Chrome prior to 148..7778.168 allowed a remote attacker who had compromised the...

2026-05-23 20:52 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 20:52 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 .

2026-05-26 02:58 UTC
Security Advisories and Bulletins | Microsoft Learn

web:learn.microsoft.com

Learning path Learn how Microsoft supports secure software development as part of a cybersecurity solution - Training Secure software development means integrating security into each phase of your development lifecycle, from requirements analysis to maintenance. Microsoft provides many services that can help you develop more secure code and deploy a more secure application in the cloud. This ...

2026-05-26 02:58 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 02:58 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-8548.json.

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              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
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              "baseScore": 8.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
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              "content": {
                "id": "CVE-2026-8548",
                "options": [
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                  },
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-15T03:57:21.890179Z",
                "version": "2.0.3"
              },
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            }
          }
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        "providerMetadata": {
          "dateUpdated": "2026-05-15T09:55:34.464Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "product": "Chrome",
          "vendor": "Google",
          "versions": [
            {
              "lessThan": "148.0.7778.168",
              "status": "affected",
              "version": "148.0.7778.168",
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            }
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      ],
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          "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html"
        },
        {
          "url": "https://issues.chromium.org/issues/497821764"
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  "cveMetadata": {
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    "dateReserved": "2026-05-14T05:40:19.616Z",
    "dateUpdated": "2026-05-15T09:55:34.464Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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