CVE-2025-43531

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This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash."}, {"lang": "es", "value": "Se abord\u00f3 una condici\u00f3n de carrera con un manejo de estado mejorado. Este problema se solucion\u00f3 en watchOS 26.2, Safari 26.2, iOS 18.7.3 y iPadOS 18.7.3, iOS 26.2 y iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. El procesamiento de contenido web creado con fines maliciosos puede provocar un cierre inesperado del proceso."}], "id": "CVE-2025-43531", "lastModified": "2026-10-07T11:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43531", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-12-17T21:10:04.613113Z", "version": "2.0.3"}}]}, "published": "2025-12-17T21:16:11.823", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125884"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125885"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125886"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125889"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125890"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125891"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/125892"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-362"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash", "id": "2423187", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423187"}, "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"}, "cwe": "CWE-362", "details": ["A flaw was found in WebKitGTK. Processing malicious web content can cause a race condition due to improper state handling and result in an unexpected process crash."], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}, "name": "CVE-2025-43531", "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": "2025-12-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-43531\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-43531\nhttps://webkitgtk.org/security/WSA-2025-0010.html"], "statement": "To exploit this issue, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with an important severity.\nAdditionally, this issue can cause an unexpected process crash but the possibility of remote code execution is not discarded.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-22T20:25:56.610686+00:00", "value": {"mitigation_remediation": ["Update Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS to the latest available version that includes the WebKitGTK fix (e.g., Safari 26.2 or newer).", "Until the update is applied, employ browser\u2011level restrictions such as disabling JavaScript for untrusted sites or using a sandboxed content\u2011filtering extension to reduce the ability of malicious content to be processed.", "Regularly check Apple\u2019s security advisories and perform system updates via Settings > General > Software Update so future fixes and broader system hardening are received promptly."], "summary": {"action": "Apply Update", "impact": "Denial of Service via Process Crash"}, "threat_synthesis": {"affected_systems": "Apple\u2019s Safari browser and the underlying WebKitGTK engine on macOS, iOS, iPadOS, tvOS, visionOS, and watchOS are affected. The issue was fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, and watchOS 26.2. Systems running any earlier version of these products are vulnerable.", "description_and_impact": "A race condition in WebKitGTK\u2019s handling of web content can cause the rendering process to crash when the browser is fed maliciously crafted data. The crash results in a denial of service that affects the availability of the affected application or system, but it does not directly compromise confidentiality or integrity. The weakness is categorized as a concurrency error (CWE-362).", "risk_and_exploitability": "The CVSS score of 3.1 denotes a low overall severity, and the EPSS score of less than 1% indicates a very low expected exploitation probability. The vulnerability is not listed in the CISA KEV catalog. The attack vector is inferred to be remote and content\u2011based; an attacker can supply malicious content to a user\u2019s browser to trigger the crash. Because the flaw does not grant code execution or persistence, the risk is limited to disrupting availability of the affected processes. Nonetheless, applying the vendor\u2019s patch remains the recommended countermeasure."}}}}, "created": "2025-12-18T09:56:20.008943+00:00", "updated": "2026-04-22T20:30:26.773004+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$macos", "apple$PRODUCT$macos_tahoe", "apple$PRODUCT$safari", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}