CVE-2025-43431

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{"bugzilla": {"description": "webkitgtk: Processing maliciously crafted web content may lead to memory corruption", "id": "2416332", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2416332"}, "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-120", "details": ["The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2. Processing maliciously crafted web content may lead to memory corruption."], "name": "CVE-2025-43431", "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-2025-43431\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-43431\nhttps://webkitgtk.org/security/WSA-2025-0008.html"], "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-22T21:26:49.992300+00:00", "value": {"mitigation_remediation": ["Install the latest security updates for Safari (26.1 or newer) and all affected Apple operating systems as listed above. ", "Update every device to the fixed releases: iOS 18.7.2 or 26.1, iPadOS 18.7.2 or 26.1, macOS Tahoe\u00a026.1, tvOS\u00a026.1, visionOS\u00a026.1, and watchOS\u00a026.1, using the standard Software Update mechanism or a device\u2011management solution. ", "If a timely update is unavailable, isolate the device by disabling or removing WebKit-based browsers or block exposure to untrusted web content through network segmentation or content filtering as a temporary mitigation."], "summary": {"action": "Immediate Patch", "impact": "Memory Corruption"}, "threat_synthesis": {"affected_systems": "Apple products that incorporate WebKitGTK, specifically Safari, as well as the web engines in iOS, iPadOS, macOS, tvOS, visionOS and watchOS, are impacted. The affected firmware versions are Safari 26.1, iOS 18.7.2 and iOS 26.1, iPadOS 18.7.2 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1 and watchOS 26.1. Systems running any of these releases are susceptible when rendering web pages that contain malicious code.", "description_and_impact": "This vulnerability occurs when WebKitGTK processes maliciously crafted web content and fails to enforce proper bounds checking on memory structures. The resulting memory corruption allows an attacker to overwrite arbitrary memory, potentially leading to execution of attacker code, data modification, or denial of service. The weakness corresponds to CWE\u2011119, CWE\u2011120 and CWE\u2011787.", "risk_and_exploitability": "The CVSS score of 8.8 flags a high severity vulnerability, while the EPSS score of less than 1\u2009% indicates a low current likelihood of exploitation. The vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires an attacker to deliver crafted web content to a user\u2019s browser, thus the primary launch vector is the rendering of malicious web pages. Successful exploitation could corrupt memory sufficient to gain arbitrary code execution or cause a crash."}}}}, "created": "2025-11-04T16:33:30.328202+00:00", "updated": "2026-04-22T21:30:27.820298+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$safari", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}