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{"bugzilla": {"description": "chromium-browser: Out of bounds read and write in WebGL", "id": "2449394", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449394"}, "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 WebGL component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=485935305"], "name": "CVE-2026-4440", "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4440\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4440\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html\nhttps://issues.chromium.org/issues/485935305"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Critical"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,146.0.7680.153)"}}], "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": "2026-03-20T20:51:10.480887+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version 146.0.7680.153 or newer", "If an update is unavailable or pending, disable WebGL via chrome://flags or through a security extension to reduce exposure"], "summary": {"action": "Immediate Patch", "impact": "Remote Arbitrary Read/Write"}, "threat_synthesis": {"affected_systems": "All supported operating systems\u2014Windows, macOS, and Linux\u2014running Google Chrome versions earlier than 146.0.7680.153 are vulnerable. The flaw is present in every Chrome build prior to that release, regardless of the platform.", "description_and_impact": "This bug is an out\u2011of\u2011bounds read and write in the WebGL subsystem of Google Chrome, identified by CWE-125 and CWE-787. It allows a remote attacker to trigger arbitrary memory reads and writes by loading a specifically crafted HTML page, which can corrupt the browser process, leak sensitive information, or enable execution of arbitrary code within the user\u2019s context.", "risk_and_exploitability": "The base CVSS score is 8.8, indicating a high severity, while the EPSS score is below 1%, suggesting that active exploitation is currently unlikely. The bug is not listed in the CISA KEV catalog. Based on the description, a remote attacker can exploit the vulnerability by visiting a malicious web page, which triggers the out\u2011of\u2011bounds memory actions. No user privilege escalation is required, but malicious code can run in the user's browser context."}}}}, "created": "2026-03-20T08:53:35.013018+00:00", "updated": "2026-03-25T14:10:06.114624+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}