CVE-2026-43703 - Vulnerability Details - OpenCVE

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://support.apple.com/en-us/127594
https://support.apple.com/en-us/127595

History

Mon, 29 Jun 2026 22:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-125 CWE-787
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 29 Jun 2026 21:45:00 +0000

Type	Values Removed	Values Added
Title		Browser Content Handling Crash in iOS, iPadOS, and macOS
Weaknesses		CWE-119

Mon, 29 Jun 2026 20:15:00 +0000

Type	Values Removed	Values Added
Description		The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
References		https://support.apple.com/en-us/127594 https://support.apple.com/en-us/127595

MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-06-29T19:42:43.841Z

Updated: 2026-06-29T21:42:01.521Z

Reserved: 2026-05-01T22:46:21.643Z

Link: CVE-2026-43703

Vulnrichment

Updated: 2026-06-29T21:41:49.276Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-29T21:30:03Z

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43703", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-05-01T22:46:21.643Z", "datePublished": "2026-06-29T19:42:43.841Z", "dateUpdated": "2026-06-29T21:42:01.521Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "Processing maliciously crafted web content may lead to an unexpected process crash"}]}], "affected": [{"vendor": "Apple", "product": "iOS and iPadOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.5.2", "versionType": "custom"}]}, {"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.5.2", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash."}], "references": [{"url": "https://support.apple.com/en-us/127594"}, {"url": "https://support.apple.com/en-us/127595"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-06-29T19:42:43.841Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-125", "lang": "en", "description": "CWE-125 Out-of-bounds Read"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "CWE-787 Out-of-bounds Write"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-29T21:41:52.939791Z", "id": "CVE-2026-43703", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-29T21:42:01.521Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-43703", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-29T21:41:52.939791Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-29T21:41:49.276Z"}}], "cna": {"affected": [{"vendor": "Apple", "product": "iOS and iPadOS", "versions": [{"status": "affected", "version": "0", "lessThan": "26.5.2", "versionType": "custom"}]}, {"vendor": "Apple", "product": "macOS", "versions": [{"status": "affected", "version": "0", "lessThan": "26.5.2", "versionType": "custom"}]}], "references": [{"url": "https://support.apple.com/en-us/127594"}, {"url": "https://support.apple.com/en-us/127595"}], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Processing maliciously crafted web content may lead to an unexpected process crash"}]}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-06-29T19:42:43.841Z"}}}, "cveMetadata": {"cveId": "CVE-2026-43703", "state": "PUBLISHED", "dateUpdated": "2026-06-29T21:42:01.521Z", "dateReserved": "2026-05-01T22:46:21.643Z", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "datePublished": "2026-06-29T19:42:43.841Z", "assignerShortName": "apple"}, "dataVersion": "5.2"}