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{"bugzilla": {"description": "chromium-browser: Out of bounds read and write in WebAudio", "id": "2449402", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449402"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["An out of bounds read and write flaw was found in the WebAudio component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=490246422"], "name": "CVE-2026-4459", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4459\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4459\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/490246422"], "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": "2026-03-20T19:37:36.934494+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.153 or newer. ", "Verify that the browser reports the updated version number. ", "If an immediate update is not possible, temporarily block WebAudio usage by disabling audio in the browser settings or applying a content security policy that restricts media playback."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Google Chrome browsers prior to version 146.0.7680.153 are affected, regardless of operating system; the issue applies to Windows, macOS, and Linux deployments of the browser.", "description_and_impact": "A flaw in Chrome\u2019s WebAudio implementation permits an out\u2011of\u2011bounds read and write, allowing a remote attacker to corrupt the page\u2019s heap. When the webpage is rendered, the corrupted heap can lead to arbitrary code execution, compromising the confidentiality, integrity, and availability of the user\u2019s system. The weakness corresponds to CWE\u2011125 and CWE\u2011787.", "risk_and_exploitability": "The CVSS score of 8.8 indicates a high severity risk. The EPSS score of less than 1% suggests a low likelihood of current exploitation, and it is not listed in CISA\u2019s KEV catalog. The flaw can be triggered from a malicious webpage, implying a remote web\u2011based attack vector where an attacker hosts a crafted HTML page to exploit the WebAudio bug and achieve code execution."}}}}, "created": "2026-03-20T08:53:18.632896+00:00", "updated": "2026-03-25T14:09:46.728566+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}