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{"bugzilla": {"description": "chromium-browser: Out of bounds memory access in WebML", "id": "2446864", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446864"}, "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"}, "details": ["An out of bounds memory access flaw was found in the WebML component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=482875307"], "name": "CVE-2026-3920", "public_date": "2026-03-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3920\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3920\nhttps://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html\nhttps://issues.chromium.org/issues/482875307"], "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": "[146.0.7680.71,146.0.7680.71)"}}], "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": "2026-04-16T02:56:34.904171+00:00", "value": {"mitigation_remediation": ["Upgrade Google Chrome to version 146.0.7680.71 or newer. This release contains the patch for the WebML memory corruption bug.", "If an upgrade cannot be performed promptly, disable WebML functionality via Chrome policy or command\u2011line flag to eliminate the attack surface.", "Maintain all web\u2011related software fully updated and monitor browsers for anomalous activity following the patching step."], "summary": {"action": "Patch Immediately", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The affected product is Google Chrome on all supported operating systems, including Windows, macOS, and Linux distributions, for any version earlier than 146.0.7680.71. All users running these outdated Chrome builds are susceptible through standard web browsing.", "description_and_impact": "Google Chrome versions prior to 146.0.7680.71 contain an out\u2011of\u2011bounds memory access flaw in WebML. A crafted HTML page can trigger heap corruption that may allow a remote attacker to execute arbitrary code. The vulnerability is classified as a high\u2011severity memory corruption bug, exposed through improper bounds checking (CWE\u2011125 and CWE\u2011787).", "risk_and_exploitability": "The CVSS score of 8.8 indicates a high risk of exploitation. Although the EPSS score is below 1%, the bug remains a serious threat given the potential impact. The vulnerability is not listed in CISA\u2019s KEV catalog, but attackers could target browsers via malicious web content, exploiting the heap corruption to hijack execution. The likelihood of exploitation is low but notable enough to warrant immediate mitigation."}}}}, "created": "2026-03-12T09:55:31.524425+00:00", "updated": "2026-04-16T03:00:09.187003+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}