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{"bugzilla": {"description": "chromium-browser: Use after free in WebRTC", "id": "2449405", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449405"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["An use after free flaw was found in the WebRTC component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=486421954"], "name": "CVE-2026-4446", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4446\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4446\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/486421954"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[146.0.7680.153,146.0.7680.153)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "analysis": {"en": {"generated_at": "2026-03-20T13:26:07.366989+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.153 or later", "If an update is not immediately possible, temporarily disable WebRTC or block WebRTC traffic using browser settings or extensions", "Verify the system has the latest Chrome update by checking the About page or running chrome://system"], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Affected product is Google Chrome. Versions prior to 146.0.7680.153 are vulnerable. The advisory does not list specific release dates, but the fix is included in the stated version release.", "description_and_impact": "A use\u2011after\u2011free bug in WebRTC allows a remote attacker to send a crafted HTML page that causes Chrome to corrupt heap memory. The vulnerability can lead to arbitrary code execution or other severe memory corruption effects, impacting confidentiality, integrity, and availability. It is identified as a classic Use After Free weakness (CWE\u2011416) and also relates to data corruption (CWE\u2011825).", "risk_and_exploitability": "The CVSS score is 8.8, indicating high severity. No EPSS value is available, and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is a remote attacker delivering malicious content via a crafted HTML page that utilizes WebRTC. No special prerequisites are mentioned beyond the user viewing the page in the affected browser. The exploitation path involves a memory corruption that could be leveraged to execute arbitrary code."}}}}, "created": "2026-03-20T08:53:29.908380+00:00", "updated": "2026-03-20T14:14:30.124787+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}