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{"bugzilla": {"description": "firefox: Undefined behavior in the Audio/Video component", "id": "2450749", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450749"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-475", "details": ["A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:\nUndefined behavior in the Audio/Video component"], "name": "CVE-2026-4724", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-24T12:30:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4724\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4724\nhttps://www.mozilla.org/security/advisories/mfsa2026-20/#CVE-2026-4724"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Moderate"}

{"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"}], "analysis": {"en": {"generated_at": "2026-03-25T23:23:58.236751+00:00", "value": {"mitigation_remediation": ["Update Mozilla Firefox to version\u202f149 or later", "Update Mozilla Thunderbird to version\u202f149 or later", "Ensure all extensions and plug\u2011ins are compatible with the updated versions", "Continuously monitor Mozilla security advisories for further updates"], "summary": {"action": "Immediate Patch", "impact": "Potential compromise of system integrity"}, "threat_synthesis": {"affected_systems": "Mozilla products affected are Firefox and Thunderbird versions earlier than 149. All releases 149 and later are not impacted.", "description_and_impact": "The vulnerability stems from undefined behavior that occurs within the audio and video handling component in Mozilla products. The high CVSS score of 9.1 indicates that an attacker could potentially execute arbitrary code or otherwise compromise system integrity by supplying malicious media content to a vulnerable instance.", "risk_and_exploitability": "The probability of exploitation is reported to be very low (less than 1%) and the issue has not been listed in the CISA Known Exploited Vulnerabilities catalog. However, given the severity rating, the risk to environments that cannot promptly upgrade remains high. The likely attack path involves an attacker delivering specially crafted audio or video files that trigger the undefined behavior during processing."}}}}, "created": "2026-03-25T11:48:04.137553+00:00", "updated": "2026-03-26T12:20:05.810803+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox"]}