CVE-2026-9119: Heap buffer overflow in WebRTC
Chromium: CVE-2026-9119 Heap buffer overflow in WebRTC
Other sources
Heap buffer overflow in WebRTC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
— NVD
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 148.0.7778.178 - Upgrade
Upgrade
Chromium/WebRTCto a version that resolves this vulnerability.Fixed in 148.0.7778.179
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-9119?
CVE-2026-9119 has a high severity rating of 8.8 on the CVSS scale.
How do I fix CVE-2026-9119?
To fix CVE-2026-9119, update Google Chrome or Microsoft Edge to versions 148.0.7778.179 or later.
What type of vulnerability is CVE-2026-9119?
CVE-2026-9119 is a heap buffer overflow vulnerability in WebRTC.
What can a remote attacker do with CVE-2026-9119?
A remote attacker can execute arbitrary code inside a sandbox via a specially crafted HTML page due to CVE-2026-9119.
Which software is affected by CVE-2026-9119?
CVE-2026-9119 affects Google Chrome and Microsoft Edge (Chromium-based) versions prior to 148.0.7778.179.