EUVD-2026-35243
GHSA-5qfq-3xhg-hc6j
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Proxy in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
AnalysisAI
Remote code execution in Google Chrome versions prior to 149.0.7827.103 stems from a use-after-free condition in the Proxy component, enabling remote attackers to execute arbitrary code by delivering malicious network traffic. Chromium has rated this issue Critical severity, and while no public exploit is identified at the time of analysis, the network-reachable nature of the Proxy subsystem and Chrome's massive deployment footprint make this a high-priority browser patch. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim's Chrome browser to process malicious network traffic handled by the Proxy component - typically reachable when the user visits an attacker-controlled site, connects through an attacker-controlled or MITM-capable network path, or uses a PAC (Proxy Auto-Config) URL that returns hostile content. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are mixed but lean toward elevated priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker operating a hostile Wi-Fi network, a compromised upstream proxy, or a malicious website lures a Chrome user to a page that triggers crafted proxy negotiation or returns a malicious PAC script response, manipulating heap state to free and reuse a Proxy object. The attacker grooms the heap so the dangling pointer references attacker-controlled data, achieving arbitrary code execution in the renderer or network service process; chained with a separate sandbox escape, this yields full host compromise. … |
| Remediation | Vendor-released patch: Chrome Stable 149.0.7827.103 - update Google Chrome to 149.0.7827.103 or later via the built-in updater (chrome://settings/help) or enterprise deployment tooling, and restart the browser to apply. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Activate incident response procedures and conduct a complete inventory of Chrome deployments across all endpoints. …
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Vendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
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External POC / Exploit Code
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