CVE-2026-11659
📛 CVE Title
Chromium: CVE-2026-11658 Insufficient validation of untrusted input in Extensions
Description
Integer overflow in UI in Google Chrome on Linux prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- critical
- CVSS score
- 9.6 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Effective score
- 9.6 / 10 CRITICAL source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- 2026-06-09 07:00 UTC
- Last updated
- 2026-06-20 01:43 UTC
- Source
- https://www.tenable.com/cve/CVE-2026-11659
- Linked Threat
- CVE-2026-11659 — CVE-2026-11659
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
- 2026-06-09 00:16:48 UTC
- NVD last modified
- 2026-07-23 08:10:00 UTC
- NVD CVSS v3.1
- 9.6 / 10 CRITICAL source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Exploitability subscore
- 2.8 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0025 (probability of exploitation in next 30 days)
- EPSS percentile
- 16.73% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01
NVD-assigned CWE(s):
CWE-20
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-08-01 16:33 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-2026-35259 - Assigner
- Chrome
- Published
- Jun 8, 2026, 11:27:38 PM
- Updated
- Jun 10, 2026, 3:58:22 AM
- EUVD base score (CVSS 3.1)
-
9.6 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.2500
- Vendors
- Products
-
Chrome (149.0.7827.103 <149.0.7827.103)
- Aliases
-
GHSA-m2rp-hqmh-cm5f
ENISA description: Integer overflow in UI in Google Chrome on Linux prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escape 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 2026-07-23 03:00 UTC (source: CVRF).
- Release
- 2026-Jun
Microsoft remediations / KB articles (2)
- Release Notes — Vendor Fix / Security Update (fixed build 149.0.4022.62)
- 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 |
|---|---|---|
| 149.0.4022.62 | 06/15/2026 | 149.0.7827.103 |
Affected products — CPE 2.3 (2) 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:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (6)
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
- MSRC update guide: CVE-2026-11659 msrc
- https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html tenable:chromereleases.googleblog.com
- https://issues.chromium.org/issues/513702971 tenable:issues.chromium.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-11659 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-11659 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/2026/06/stable-channel-update-for-desktop_0153744567.html chrome-cve-admin@google.com Release NotesVendor Advisory
- https://issues.chromium.org/issues/513702971 chrome-cve-admin@google.com Permissions Required
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.qualys.com
May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…
2026-06-19 02:38 UTC -
web:cve.armis.com
CVE-2026-11659 (Critical, CVSS 9.6). Published 2026 . An integer overflow in Chrome's Linux UI component allows a remote attacker to escape the browser sandbox …
2026-06-19 02:38 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-06-19 02:38 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 02:38 UTC -
web:www.crowdstrike.com
Microsoft's March 2026 Patch Tuesday addresses 82 CVEs , featuring eight Critical vulnerabilities.
2026-06-19 02:38 UTC -
web:www.crowdstrike.com
Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.
2026-06-19 02:38 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.
2026-06-19 02:38 UTC -
web:www.pdq.com
May 2026 Patch Tuesday is here, and PDQ is back with another recap. Will we see another month of increased CVE volume? Is AI to blame? Dive in to learn more.
2026-06-19 02:38 UTC -
web:www.rapid7.com
Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.
2026-06-19 02:38 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 02:38 UTC
AI Forensic Analysis
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