CVE-2026-9961
📛 CVE Title
Debian: CVE-2026-9961: chromium -- security update
Description
Use after free in SurfaceCapture in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- MEDIUM
- CVSS score
- 5.0 / 10
- CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C- Effective score
- 5.0 / 10 MEDIUM source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- 2026-06-01 00:00 UTC
- Last updated
- 2026-06-19 14:40 UTC
- Source
- https://www.rapid7.com/db/vulnerabilities/debian-cve-2026-9961/
- Linked Threat
- CVE-2026-9961 — CVE-2026-9961
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
- 2026-05-28 23:16:54 UTC
- NVD last modified
- 2026-06-17 11:05:54 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
- 0.0024 (probability of exploitation in next 30 days)
- EPSS percentile
- 15.32% vs all CVEs — higher = more likely to be exploited, as of 2026-06-30
NVD-assigned CWE(s):
CWE-416
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-06-30 19:23 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-2026-33103 - Assigner
- Chrome
- Published
- May 28, 2026, 10:25:37 PM
- Updated
- May 30, 2026, 3:57:32 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
- 0.2400
- Vendors
- Products
-
Chrome (148.0.7778.216 <148.0.7778.216)
- Aliases
-
GHSA-qhc5-4jrr-hwc9
ENISA description: Use after free in SurfaceCapture in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
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 2026-08-15 03:02 UTC (source: CVRF).
- Release
- 2026-May
Microsoft remediations / KB articles (2)
- Release Notes — Vendor Fix / Security Update (fixed build 148.0.3967.96)
- 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 |
|---|---|---|
| 148.0.3967.96 | 05/29/2026 | 148.0.7778.216/217 |
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 — 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 (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (10)
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-2026-9961 msrc
- None Available msrc
- https://www.first.org/epss/ tenable:www.first.org
- https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html tenable:chromereleases.googleblog.com
- https://issues.chromium.org/issues/504710769 tenable:issues.chromium.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-9961 tenable:nvd.nist.gov
- https://attackerkb.com/topics/CVE-2026-9961 rapid7:attackerkb.com
- http://cwe.mitre.org/data/definitions/416.html rapid7:cwe.mitre.org
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-33103 rapid7:euvd.enisa.europa.eu
- https://www.cve.org/CVERecord?id=CVE-2026-9961 rapid7: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_0877304591.html chrome-cve-admin@google.com Release Notes
- https://issues.chromium.org/issues/504710769 chrome-cve-admin@google.com Permissions Required
Remediations (12)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
rapid7
google-chrome-upgrade-latest
2026-06-04 08:59 UTC -
rapid7
debian-upgrade-chromium
2026-06-04 08:56 UTC -
web:cybersecuritynews.com
Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.
2026-06-19 02:30 UTC -
web:hackread.com
Microsoft's June 2026 patch Tuesday resolves 206 vulnerabilities, including 3 critical zero-days and severe 9.8 CVSS kernel, network and HTTP.sys flaws.
2026-06-19 02:30 UTC -
web:nvd.nist.gov
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...
2026-06-19 02:30 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.
2026-06-19 02:30 UTC -
web:securityaffairs.com
Microsoft confirmed the RoguePlanet Defender zero-day ( CVE - 2026 -50656), a privilege escalation flaw, and is developing a security patch .
2026-06-19 02:30 UTC -
web:support.microsoft.com
Improvements This update includes new features and quality improvements that were part of the following update: May 12, 2026—KB5089548 (OS Build 28000.2113) May 26, 2026—KB5089570 (OS Build 28000.2179) This update addresses security vulnerabilities documented in the following guide: June 2026 Security Updates The following summary outlines key quality improvements addressed by this update ...
2026-06-19 02:30 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities.
2026-06-19 02:30 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 ...
2026-06-19 02:30 UTC -
web:www.malwarebytes.com
Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.
2026-06-19 02:30 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-06-19 02:30 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.