CVE-2025-43430

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{"bugzilla": {"description": "webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash", "id": "2416331", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2416331"}, "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": ["This issue was addressed through improved state management. This issue is fixed in Safari 26.1, visionOS 26.1, watchOS 26.1, iOS 26.1 and iPadOS 26.1, tvOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash."], "name": "CVE-2025-43430", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "webkitgtk", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "webkitgtk3", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "webkitgtk4", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "webkit2gtk3", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "webkit2gtk3", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-43430\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-43430\nhttps://webkitgtk.org/security/WSA-2025-0008.html"], "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-22T21:22:41.255366+00:00", "value": {"mitigation_remediation": ["Upgrade to Safari 26.1, iOS 26.1, iPadOS 26.1, macOS 26.1, tvOS 26.1, visionOS 26.1, and watchOS 26.1 to apply the WebKitGTK fix", "Apply all available Apple system updates through the built\u2011in update mechanisms to ensure the latest WebKitGTK components are installed", "If your environment uses a custom WebKitGTK build, upgrade that library to the 26.1 release or later"], "summary": {"action": "Patch Update", "impact": "Denial of Service (process crash)"}, "threat_synthesis": {"affected_systems": "The bug affects Apple products, including Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS on versions before 26.1. The issue is present in all current releases of these platforms that have not applied the 26.1 update, which incorporates the necessary state\u2011management fix.", "description_and_impact": "Improper state management in the WebKitGTK engine causes it to crash when processing specially crafted web content. This results in a denial of service, potentially disrupting user sessions and compromising the availability of browsers or web\u2011based applications. The weakness involves improper input validation (CWE\u201120) and logical errors in state handling (CWE\u2011703).", "risk_and_exploitability": "The CVSS score of 4.3 indicates a low severity impact, and the EPSS score of <1% shows a very low probability of exploitation. The vulnerability is not listed in CISA\u2019s KEV catalog. Attackers can provoke the crash by delivering malicious web content within a page that a user visits, leading to a local denial of service. The low exploitation likelihood reflects the lack of readily available exploit code and the requirement for the target to load the affected web content."}}}}, "created": "2025-11-04T16:33:02.346178+00:00", "updated": "2026-04-22T21:30:27.818311+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$safari", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}