CVE-2026-9121
📛 CVE Title
CVE-2026-9121
Description
Out of bounds read in GPU in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
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-125 - Reserved
- 2026-05-20
- Published
- 2026-05-20 19:12 UTC
- Last updated
- 2026-05-20 19:34 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/9xxx/CVE-2026-9121.json
- Linked Threat
- CVE-2026-9121 — CVE-2026-9121
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 20:16:44 UTC
- NVD last modified
- 2026-05-21 16:35:19 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
- 6.87% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 00:31 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2026-31171 - Assigner
- Chrome
- Published
- May 20, 2026, 7:12:46 PM
- Updated
- May 21, 2026, 3:55:40 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
- Products
-
Chrome (148.0.7778.179 <148.0.7778.179)
- Aliases
-
GHSA-mhhc-85f5-7chm
ENISA description: Out of bounds read in GPU in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
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 |
|---|---|---|---|
| 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-2026-9121 msrc
- None Available msrc
- https://issues.chromium.org/issues/488064108 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-2026-9121 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-9121 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/488064108 chrome-cve-admin@google.com Permissions Required
Remediations (19)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.talosintelligence.com
Microsoft has released its monthly security update for May 2026 , which includes 137 vulnerabilities affecting a range of products, including 16 that Microsoft marked as "critical".
2026-05-23 22:19 UTC -
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 22:19 UTC -
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 22:19 UTC -
web:support.servicenow.com
Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...
2026-05-23 22:19 UTC -
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 ...
2026-05-23 22:19 UTC -
web:www.crowdstrike.com
Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.
2026-05-23 22:19 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-23 22:19 UTC -
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 -
web:www.pcworld.com
This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.
2026-05-23 22:19 UTC -
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 -
web:app.opencve.io
Explore the latest vulnerabilities and security issues in the CVE database
2026-05-26 03:00 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited ...
2026-05-26 03:00 UTC -
web:www.action1.com
This Patch Tuesday brings 55 vulnerability fixes from Microsoft, including six zero-days. Third-party overview includes actively exploited vulnerabilities in web browsers, Cisco, Fortinet, ServiceNow, Palo Alto, SAP, WordPress, Adobe, Oracle, and many more.
2026-05-26 03:00 UTC -
web:www.cisa.gov
Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice.
2026-05-26 03:00 UTC -
web:www.computerworld.com
Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...
2026-05-26 03:00 UTC -
web:www.csoonline.com
Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or ...
2026-05-26 03:00 UTC -
web:www.lansweeper.com
Patch Tuesday Microsoft report by Lansweeper. get an overview from all the Microsoft Patch Tuesday 's and fix the vulnerabilities.
2026-05-26 03:00 UTC -
web:www.microsoft.com
Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.
2026-05-26 03:00 UTC -
web:www.techrepublic.com
Microsoft's May Patch Tuesday fixes 120 flaws, including 31 remote code execution bugs, with no zero-days reported at release.
2026-05-26 03:00 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-9121.json.
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"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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