CVE-2025-43433

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This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption."}, {"lang": "es", "value": "El problema se abord\u00f3 con un manejo de memoria mejorado. Este problema est\u00e1 solucionado en iOS 18.7.2 y iPadOS 18.7.2. El procesamiento de contenido web malintencionado puede provocar corrupci\u00f3n de memoria."}], "id": "CVE-2025-43433", "lastModified": "2026-08-14T13:17:14.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-43433", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-11-05T04:55:28.313670Z", "version": "2.0.3"}}]}, "published": "2025-11-04T02:15:49.160", "references": [{"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125632"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125633"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125634"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125637"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125638"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125639"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/125640"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2025:22789"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2025:22790"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2025-43433"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448783"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43433.json"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-120"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:23583", "cpe": "cpe:/o:redhat:rhel_els:7", "package": "webkitgtk4-0:2.50.3-2.el7_9", "product_name": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "release_date": "2025-12-18T00:00:00Z"}, {"advisory": "RHSA-2025:22789", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "webkit2gtk3-0:2.50.3-1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-12-08T00:00:00Z"}, {"advisory": "RHSA-2025:23433", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "webkit2gtk3-0:2.50.3-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-12-17T00:00:00Z"}, {"advisory": "RHSA-2025:23434", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "webkit2gtk3-0:2.50.3-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-12-17T00:00:00Z"}, {"advisory": "RHSA-2025:23434", "cpe": "cpe:/a:redhat:rhel_eus_long_life:8.4", "package": "webkit2gtk3-0:2.50.3-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "release_date": "2025-12-17T00:00:00Z"}, {"advisory": "RHSA-2025:23743", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "webkit2gtk3-0:2.50.3-2.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-12-22T00:00:00Z"}, {"advisory": "RHSA-2025:23743", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "webkit2gtk3-0:2.50.3-2.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-12-22T00:00:00Z"}, {"advisory": "RHSA-2025:23743", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "webkit2gtk3-0:2.50.3-2.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-12-22T00:00:00Z"}, {"advisory": "RHSA-2025:23742", "cpe": "cpe:/a:redhat:rhel_tus:8.8", "package": "webkit2gtk3-0:2.50.3-2.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "release_date": "2025-12-22T00:00:00Z"}, {"advisory": "RHSA-2025:23742", "cpe": "cpe:/a:redhat:rhel_e4s:8.8", "package": "webkit2gtk3-0:2.50.3-2.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "release_date": "2025-12-22T00:00:00Z"}, {"advisory": "RHSA-2025:22790", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "webkit2gtk3-0:2.50.3-1.el9_7", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-12-08T00:00:00Z"}, {"advisory": "RHSA-2025:23452", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "webkit2gtk3-0:2.50.3-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-12-17T00:00:00Z"}, {"advisory": "RHSA-2025:23451", "cpe": "cpe:/a:redhat:rhel_e4s:9.2", "package": "webkit2gtk3-0:2.50.3-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "release_date": "2025-12-17T00:00:00Z"}, {"advisory": "RHSA-2025:23591", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "webkit2gtk3-0:2.50.3-1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-12-18T00:00:00Z"}, {"advisory": "RHSA-2025:23110", "cpe": "cpe:/a:redhat:rhel_eus:9.6", "package": "webkit2gtk3-0:2.50.3-1.el9_6", "product_name": "Red Hat Enterprise Linux 9.6 Extended Update Support", "release_date": "2025-12-11T00:00:00Z"}], "bugzilla": {"description": "webkitgtk: Processing maliciously crafted web content may lead to memory corruption", "id": "2448783", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448783"}, "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": "verified"}, "cwe": "CWE-120", "details": ["The issue was addressed with improved memory handling. This issue is fixed in tvOS 26.1, watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, visionOS 26.1. Processing maliciously crafted web content may lead to memory corruption.", "A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling."], "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-2025-43433", "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"}], "public_date": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-43433\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-43433\nhttps://webkitgtk.org/security/WSA-2026-0001.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 memory corruption and the possibility of remote code execution is not discarded.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-22T21:49:14.643437+00:00", "value": {"mitigation_remediation": ["Apply the Apple software update that contains Safari\u202f26.1, iOS\u202f18.7.2 / iPadOS\u202f18.7.2, iOS\u202f26.1 / iPadOS\u202f26.1, macOS\u202fTahoe\u202f26.1, tvOS\u202f26.1, visionOS\u202f26.1, and watchOS\u202f26.1 or later to receive the memory\u2011handling fix.", "For Red\u202fHat Enterprise Linux hosts, install the latest security updates that replace the vulnerable WebKitGTK package; use the system\u2019s package manager or consult Red\u202fHat errata advisories for the patch.", "Until patches are available, limit exposure by disabling or restricting WebKitGTK\u2011based browsers or webviews, or enforce strict network filtering to block potentially malicious web content from untrusted sources."], "summary": {"action": "Patch Immediately", "impact": "Memory Corruption"}, "threat_synthesis": {"affected_systems": "In Apple products, all versions of Safari, iOS, iPadOS, macOS, tvOS, visionOS, and watchOS running prior to the security fixes delivered in Safari\u202f26.1, iOS\u202f18.7.2, iPadOS\u202f18.7.2, iOS\u202f26.1, iPadOS\u202f26.1, macOS\u202fTahoe\u202f26.1, tvOS\u202f26.1, visionOS\u202f26.1, and watchOS\u202f26.1 are impacted. In Red\u202fHat Enterprise Linux, all active RHEL\u202f8.x and RHEL\u202f9.x releases\u2014including RHEL\u202f8.2, 8.4, 8.6, 8.8, 9.0, 9.2, 9.4, 9.6, and the various extended\u2011life and future\u2011support streams\u2014contain the vulnerable WebKitGTK component as identified by the listed CPEs.", "description_and_impact": "Processing maliciously crafted web content may lead to memory corruption. The flaw arises from insufficient bounds checking in WebKitGTK\u2019s memory handling routine, exposing buffer overread, overflow, and arbitrary memory write weaknesses (CWE\u2011119, CWE\u2011120, CWE\u2011787). An attacker who can supply specially crafted web pages or scripts to the affected browser or embedded webview may trigger this corruption, potentially allowing code execution, data manipulation, or denial of service.", "risk_and_exploitability": "The CVSS score of 8.8 indicates high severity, while the EPSS score of less than 1% suggests the likelihood of real\u2011world exploitation is low. The flaw is not listed in CISA KEV, implying no published exploit. The most probable attack vector involves an attacker delivering malicious web content through a compromised website, phishing email, or embedded webview in an application. Because the bug causes memory corruption, successful exploitation could lead to arbitrary code execution, compromising user data and system integrity."}}}}, "created": "2025-11-04T16:34:40.341768+00:00", "updated": "2026-04-22T22:00:18.073975+00:00", "vendors": ["apple", "apple$PRODUCT$ios", "apple$PRODUCT$ipados", "apple$PRODUCT$safari", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}