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{"bugzilla": {"description": "firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component", "id": "2450727", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450727"}, "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-787", "details": ["A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nIncorrect boundary conditions in the Audio/Video component"], "name": "CVE-2026-4710", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/thunderbird-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-24T12:30:35Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4710\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4710\nhttps://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4710\nhttps://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4710"], "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"}, {"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": "2026-03-26T04:50:20.271840+00:00", "value": {"mitigation_remediation": ["Upgrade Mozilla Firefox to version 149 or newer, or to Firefox ESR 140.9 or newer.", "Upgrade Mozilla Thunderbird to version 149 or newer, or to Thunderbird ESR 140.9 or newer."], "summary": {"action": "Apply patch", "impact": "Buffer overflow leading to memory corruption"}, "threat_synthesis": {"affected_systems": "All Mozilla Firefox releases prior to version 149 and all Firefox ESR releases before 140.9, as well as all Mozilla Thunderbird releases prior to version 149 and all Thunderbird ESR releases before 140.9, are affected. Every build of these browsers and email client applications with the specified version numbers is vulnerable.", "description_and_impact": "The vulnerability originates from missing boundary checks in the audio/video component of Mozilla applications. This flaw can lead to a buffer overflow that overwrites adjacent memory, potentially compromising the process\u2019s integrity and allowing arbitrary code execution. The effect is a loss of confidentiality, integrity, and availability for the affected application.", "risk_and_exploitability": "The CVSS base score of 9.8 signals a high severity risk, while the EPSS score of less than 1% indicates that exploitation in the field is currently unlikely. The vulnerability is not included in the CISA KEV catalog, suggesting minimal evidence of active exploitation. The likely attack vector is inferred from common media handling patterns and could involve a maliciously crafted audio or video file or stream; this inference is not explicitly stated in the description."}}}}, "created": "2026-03-25T11:47:57.581606+00:00", "updated": "2026-03-26T12:19:59.067349+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox", "mozilla$PRODUCT$firefox_esr"]}