CVE-2026-20620

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.apple.com/en-us/126348	Release Notes Vendor Advisory
https://support.apple.com/en-us/126349	Release Notes Vendor Advisory
https://support.apple.com/en-us/126350	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:macos::::::::

History

No history.

Information

Published : 2026-02-11 23:16

Updated : 2026-06-17 10:17

NVD link : CVE-2026-20620

Mitre link : CVE-2026-20620

CVE.ORG link : CVE-2026-20620

JSON object : View

Products Affected

apple

macos

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2026-20620", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20620", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-13T20:14:12.406043Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.5}]}, "affected": [{"source": "product-security@apple.com", "affectedData": [{"vendor": "Apple", "product": "macOS", "versions": [{"status": "affected", "version": "0", "lessThan": "14.8.4", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "15.7.4", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "26.3", "versionType": "custom"}]}]}], "published": "2026-02-11T23:16:05.577", "references": [{"url": "https://support.apple.com/en-us/126348", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/126349", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/126350", "tags": ["Release Notes", "Vendor Advisory"], "source": "product-security@apple.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory."}, {"lang": "es", "value": "Un problema de lectura fuera de l\u00edmites se abord\u00f3 con una validaci\u00f3n de entrada mejorada. Este problema est\u00e1 solucionado en macOS Sequoia 15.7.4, macOS Tahoe 26.3, macOS Sonoma 14.8.4. Un atacante podr\u00eda causar una terminaci\u00f3n inesperada del sistema o leer memoria del kernel."}], "lastModified": "2026-06-17T10:17:32.733", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E899D2A7-973C-4A46-B479-C245E5DFABE9", "versionEndExcluding": "14.8.4", "versionStartIncluding": "14.0"}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5F7A1AF-3DD7-4FA1-BF78-4855F83BB463", "versionEndExcluding": "15.7.4", "versionStartIncluding": "15.0"}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0488A377-7971-4703-8823-05BF1E23CF48", "versionEndExcluding": "26.3", "versionStartIncluding": "26.0"}], "operator": "OR"}]}], "sourceIdentifier": "product-security@apple.com"}