CVE-2025-43438

A use-after-free issue was addressed with improved memory management. 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, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://support.apple.com/en-us/125632
https://support.apple.com/en-us/125633
https://support.apple.com/en-us/125634
https://support.apple.com/en-us/125638
https://support.apple.com/en-us/125639
https://support.apple.com/en-us/125640
https://access.redhat.com/errata/RHSA-2025:22789
https://access.redhat.com/errata/RHSA-2025:22790
https://access.redhat.com/security/cve/CVE-2025-43438
https://bugzilla.redhat.com/show_bug.cgi?id=2448784
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43438.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apple:safari::::::::
	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:visionos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

26 Sep 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Un problema de uso después de liberación se abordó con una gestión de memoria mejorada. Este problema está corregido en iOS 18.7.2 y iPadOS 18.7.2. El procesamiento de contenido web elaborado maliciosamente puede provocar un cierre inesperado de Safari.

Information

Published : 2025-11-04 02:15

Updated : 2026-09-26 00:10

NVD link : CVE-2025-43438

Mitre link : CVE-2025-43438

CVE.ORG link : CVE-2025-43438

JSON object : View

Products Affected

apple

watchos
iphone_os
ipados
safari
visionos

CWE

CWE-416

Use After Free

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"attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "product-security@apple.com", "affectedData": [{"vendor": "Apple", "product": "Safari", "versions": [{"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}]}, {"vendor": "Apple", "product": "iOS and iPadOS", "versions": [{"status": "affected", "version": "0", "lessThan": "18.7.2", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}]}, {"vendor": "Apple", "product": "macOS", "versions": [{"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}]}, {"vendor": "Apple", "product": "visionOS", "versions": [{"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}]}, {"vendor": "Apple", "product": "watchOS", "versions": [{"status": "affected", "version": "0", "lessThan": "26.1", "versionType": "custom"}]}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/a:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:2.50.3-1.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "webkit2gtk3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:2.50.3-1.el9_7", "lessThan": "*", "versionType": "rpm"}], "packageName": "webkit2gtk3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "webkitgtk", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "webkitgtk3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "webkitgtk4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2025-11-04T02:15:49.563", "references": [{"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/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": "product-security@apple.com"}, {"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-2025-43438", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448784", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43438.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "A use-after-free issue was addressed with improved memory management. 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, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash."}, {"lang": "es", "value": "Un problema de uso despu\u00e9s de liberaci\u00f3n se abord\u00f3 con una gesti\u00f3n de memoria mejorada. Este problema est\u00e1 corregido en iOS 18.7.2 y iPadOS 18.7.2. El procesamiento de contenido web elaborado maliciosamente puede provocar un cierre inesperado de Safari."}], "lastModified": "2026-09-26T00:10:00.127", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CFF118CE-3F13-43BE-B250-5579E1C842EB", "versionEndExcluding": "26.1"}, {"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6D51AEDC-9086-4010-B3BF-C652D65D09C8", "versionEndExcluding": "26.1"}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3981A7BE-BC98-4C6F-AE38-D68839368925", "versionEndExcluding": "26.1"}, {"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7DFD3616-65CA-4E5C-849C-3C20ACBCB610", "versionEndExcluding": "26.1"}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F9D7F76-13FB-407C-94E5-221B93021568", "versionEndExcluding": "26.1"}], "operator": "OR"}]}], "sourceIdentifier": "product-security@apple.com"}