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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,149)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Firefox", "source": "cna", "vendor": "Mozilla"}, "product": "firefox", "vendor": "mozilla"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,140.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Firefox ESR", "source": "cna", "vendor": "Mozilla"}, "product": "firefox_esr", "vendor": "mozilla"}], "analysis": {"en": {"generated_at": "2026-03-25T20:52:34.067604+00:00", "value": {"mitigation_remediation": ["Upgrade Mozilla Firefox to version 149 or newer, and to ESR 140.9 or newer.", "Upgrade Mozilla Thunderbird to version 149 or newer, and to ESR 140.9 or newer.", "If an upgrade is not currently feasible, monitor Mozilla\u2019s security advisories for updates and apply them as soon as they become available.", "If your environment permits configuration of widget usage, consider disabling or restricting the Widget: Cocoa component as a temporary mitigative measure."], "summary": {"action": "Apply Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "Mozilla Firefox versions below 149 and Firefox ESR below 140.9, as well as Mozilla Thunderbird versions below 149 and Thunderbird ESR below 140.9, are affected. These older releases still contain the unpatched Widget: Cocoa component and are therefore at risk.", "description_and_impact": "The vulnerability is an information disclosure in the Widget: Cocoa component used by Mozilla applications. An attacker may gain unintended access to sensitive data through this component, representing a breach of confidentiality. The flaw is classified as CWE-200, indicating unauthorized exposure of information.", "risk_and_exploitability": "The CVSS score of 7.5 denotes high severity, while the EPSS score of less than 1% suggests a low probability of active exploitation. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the likely attack vector involves local execution or the use of malicious content that interacts with the Widget: Cocoa component; remote exploitation without any additional conditions is not indicated by the available data."}}}}, "created": "2026-03-25T11:47:54.592539+00:00", "updated": "2026-03-25T21:27:48.491588+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox", "mozilla$PRODUCT$firefox_esr"]}