Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
4DescriptionCVE.org
Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Remote code execution in Google Chrome versions prior to 149.0.7827.53 stems from a use-after-free flaw in the WebRTC component, enabling a remote attacker to execute arbitrary code inside the renderer sandbox by luring a victim to a crafted HTML page. The issue is rated High severity by Chromium and carries a CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:N/UI:R), reflecting low complexity and no privilege requirement but requiring user interaction. No public exploit identified at time of analysis, and the CVE is not listed in CISA KEV.
Technical ContextAI
The flaw is a CWE-416 Use-After-Free defect in Chrome's WebRTC implementation, the real-time communication stack responsible for peer-to-peer audio, video, and data channels exposed to JavaScript via APIs such as RTCPeerConnection and RTCDataChannel. Use-after-free occurs when memory is reclaimed while a dangling pointer still references it, allowing controlled reuse to corrupt object vtables or function pointers and divert execution. Because WebRTC is reachable from any web page without explicit user permission for some sub-APIs and is implemented in C++ within the renderer process, such bugs are a recurring target for exploit developers. Per the EUVD data the affected component is the Chromium browser binary at versions earlier than 149.0.7827.53; no formal CPE strings were supplied in this intelligence package.
RemediationAI
Vendor-released patch: Google Chrome 149.0.7827.53 or later on the Stable desktop channel - update via Chrome's built-in updater (Settings > About Chrome) and restart the browser, then verify the version string. Enterprise administrators should push the new build via Google Update / Chrome Browser Cloud Management or their MDM tooling and audit Chromium-derived browsers and Electron apps for upstream Chromium roll-ups, referencing https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html and the tracker at https://issues.chromium.org/issues/513154132. Where immediate patching is not possible, compensating controls include enforcing Site Isolation (default on desktop) to keep the WebRTC renderer compromise per-origin, restricting WebRTC via the WebRtcAllowLegacyTLSProtocols/WebRtcUdpPortRange enterprise policies or disabling WebRTC entirely via the URLBlocklist policy on browsers that do not require voice/video calling, and blocking outbound STUN/TURN (UDP 3478, TCP/UDP 19302) at the egress firewall for non-conferencing endpoints - note these controls will break Google Meet, Zoom Web, Teams calls, and other RTC features.
Same weakness CWE-416 – Use After Free
View allVendor StatusVendor
SUSE
Severity: Important| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-34424
GHSA-c282-rr9w-v6rm