CVE-2025-43368

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{"bugzilla": {"description": "webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash", "id": "2397630", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2397630"}, "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-416", "details": ["A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26, macOS Tahoe 26, iOS 26 and iPadOS 26. Processing maliciously crafted web content may lead to an unexpected Safari crash.", "A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory management and result in an unexpected process crash."], "mitigation": {"lang": "en:us", "value": "Do not process or load untrusted web content with WebKitGTK.\nIn Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp.\nThis vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction.\nTo mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them will also remove GNOME and other packages, breaking functionality. However, the server can still be used via the terminal interface.\nAdditionally, WebKitGTK3 is not required by any package. Therefore, it can be removed without consequences or break of functionality."}, "name": "CVE-2025-43368", "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": "2025-09-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-43368\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-43368\nhttps://webkitgtk.org/security/WSA-2025-0006.html"], "statement": "To exploit this flaw, an attacker needs to trick a user into processing or loading malicious web content.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-27T23:54:19.530239+00:00", "value": {"mitigation_remediation": ["Upgrade Safari to version\u00a026 or later on macOS, iOS, and iPadOS. ", "Upgrade macOS to Tahoe\u00a026 or a later release that includes the WebKitGTK fix. ", "Apply the Apple security update referenced in the support documents to ensure the use\u2011after\u2011free is patched."], "summary": {"action": "Apply Patch", "impact": "Denial of Service (unexpected crash of Safari)"}, "threat_synthesis": {"affected_systems": "Apple\u2019s Safari web browser, available on macOS, iOS, and iPadOS. The issue is fixed in Safari 26, iOS 26, iPadOS 26 and macOS Tahoe 26, so any versions prior to these are vulnerable.", "description_and_impact": "A use\u2011after\u2011free flaw within WebKit\u2019s memory handling was identified. An attacker can craft malicious web content that triggers the flaw, leading to an unhandled crash of Safari. The breach does not provide execution privileges or access to sensitive data; the consequence is service disruption for the user\u2019s browser session and potential impact on applications that depend on Safari being available.", "risk_and_exploitability": "The CVSS score of 4.3 indicates low\u2011to\u2011moderate severity, and an EPSS score below 1% suggests a very low likelihood of exploitation in the wild. The vulnerability is not currently listed in the CISA KEV catalog. Exploitation requires an attacker to serve or embed specially crafted content in a web page that the user visits or loads, making the attack vector likely network or local page consumption; however, it does not give the attacker any further privileges or control."}}}}, "created": "2025-09-17T10:05:21.035674+00:00", "updated": "2026-04-28T00:00:18.122789+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$macos", "apple$PRODUCT$safari"]}