CVE-2025-43343

The issue was addressed with improved memory handling. This issue is fixed in Safari 26, tvOS 26, watchOS 26, iOS 26 and iPadOS 26, visionOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.apple.com/en-us/125108	Release Notes Vendor Advisory
https://support.apple.com/en-us/125113	Release Notes Vendor Advisory
https://support.apple.com/en-us/125114	Release Notes Vendor Advisory
https://support.apple.com/en-us/125115	Release Notes Vendor Advisory
https://support.apple.com/en-us/125116	Release Notes Vendor Advisory
http://seclists.org/fulldisclosure/2025/Sep/49	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2025/Sep/53	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2025/Sep/57	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2025/Sep/59	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/10/13/4	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:19946
https://security-tracker.debian.org/tracker/CVE-2025-43343
https://ubuntu.com/security/CVE-2025-43343
https://webkitgtk.org/security/WSA-2025-0007.html

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:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:visionos::::::::
	cpe:2.3:o:apple:watchos::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:webkitgtk:webkitgtk::::::::
	cpe:2.3:a:wpewebkit:wpe_webkit::::::::

History

No history.

Information

Published : 2025-09-15 23:15

Updated : 2025-12-17 15:15

NVD link : CVE-2025-43343

Mitre link : CVE-2025-43343

CVE.ORG link : CVE-2025-43343

JSON object : View

Products Affected

wpewebkit

wpe_webkit

apple

ipados
iphone_os
tvos
visionos
safari
macos
watchos

webkitgtk

webkitgtk

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

{"id": "CVE-2025-43343", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2025-09-15T23:15:36.603", "references": [{"url": "https://support.apple.com/en-us/125108", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/125113", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/125114", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/125115", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/125116", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "http://seclists.org/fulldisclosure/2025/Sep/49", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2025/Sep/53", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2025/Sep/57", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2025/Sep/59", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2025/10/13/4", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://access.redhat.com/errata/RHSA-2025:19946", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security-tracker.debian.org/tracker/CVE-2025-43343", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://ubuntu.com/security/CVE-2025-43343", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://webkitgtk.org/security/WSA-2025-0007.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26, tvOS 26, watchOS 26, iOS 26 and iPadOS 26, visionOS 26. Processing maliciously crafted web content may lead to an unexpected process crash."}], "lastModified": "2025-12-17T15:15:49.523", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "213D326D-D8FB-4C0B-B3C9-D44E359F5765", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4221CFD-0208-42B8-AACA-1BE6AEC3BA9A", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "68DCA17A-424E-4EE3-B005-0F2E42407226", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39AFEC84-CF6E-4859-8B5A-C5CF3F838A94", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD4D5965-C1B7-4C82-AB16-BA4D41F2FBCA", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E33744A8-68C0-4822-B08E-100911C18404", "versionEndExcluding": "26.0"}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66CF3395-7CC9-41FD-8419-815AC6022191", "versionEndExcluding": "26.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "829CB30B-A756-423B-B271-09522536A49B", "versionEndExcluding": "2.50.1"}, {"criteria": "cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF768E8F-47B5-441E-BEF4-224F6369A0FE", "versionEndExcluding": "2.50.1"}], "operator": "OR"}]}], "sourceIdentifier": "product-security@apple.com"}