PatchSiren cyber security CVE debrief
CVE-2026-9119 Google CVE debrief
CVE-2026-9119 is a high-severity memory corruption issue in WebRTC as used by Google Chrome. A remote attacker could potentially trigger arbitrary code execution inside the browser sandbox by getting a user to open a crafted HTML page. The NVD record ties the issue to Chrome versions prior to 148.0.7778.179 and lists CWE-122 (heap-based buffer overflow).
- Vendor
- Product
- Chrome
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-20
- Original CVE updated
- 2026-05-21
- Advisory published
- 2026-05-20
- Advisory updated
- 2026-05-21
Who should care
Organizations that use Google Chrome on managed desktops, kiosks, VDI environments, or high-risk browsing profiles should care most. Security teams should prioritize any environment where users regularly open untrusted web content or where browser exploitation could lead to follow-on access.
Technical summary
The vulnerability is described as a heap buffer overflow in Chrome's WebRTC component. The attack path is network-delivered and user-interaction dependent: a crafted HTML page is used to trigger the flaw in a prior Chrome release. The stated impact is arbitrary code execution inside the browser sandbox, and the provided CVSS vector is AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, reflecting a high-severity remote code execution risk with user interaction required.
Defensive priority
High. The combination of remote delivery, user interaction, and code execution impact makes this a priority browser update even though exploitation requires a crafted page and runs inside the sandbox.
Recommended defensive actions
- Update Google Chrome to 148.0.7778.179 or later on all supported systems.
- Verify that managed browser update policies are not delaying deployment of the fixed version.
- Prioritize patching on endpoints used for general web browsing or handling untrusted content.
- Review browser exposure on privileged workstations, shared systems, and kiosk deployments.
- Monitor vendor advisories and Chromium issue references for any follow-on guidance or clarification.
Evidence notes
This debrief is based only on the supplied NVD record and the linked official references. The NVD entry states a heap buffer overflow in WebRTC for Google Chrome prior to 148.0.7778.179, references a Google Chrome stable-channel update and a Chromium issue, and assigns CWE-122 with a high-severity CVSS 3.1 vector. No additional exploit details were used.
Official resources
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CVE-2026-9119 CVE record
CVE.org
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CVE-2026-9119 NVD detail
NVD
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Source item URL
nvd_modified
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Mitigation or vendor reference
[email protected] - Vendor Advisory
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Source reference
[email protected] - Permissions Required
Published in the supplied source record on 2026-05-20T20:16:43.387Z. The source references point to a Google Chrome stable-channel update and a Chromium issue tracker entry.