CVE-2026-20634

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{"affected": [{"affectedData": [{"product": "iOS and iPadOS", "vendor": "Apple", "versions": [{"lessThan": "18.7.5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "14.8.4", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "15.7.4", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "tvOS", "vendor": "Apple", "versions": [{"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "visionOS", "vendor": "Apple", "versions": [{"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "5DF4C0EE-C67C-4BA1-BB50-C51DEC72E486", "versionEndExcluding": "18.7.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "00E2601B-7453-4C8B-A307-EF7BC5BF2E84", "versionEndExcluding": "26.3", "versionStartIncluding": "26.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "273784FD-F8F0-466D-AF6E-5511FF3781B7", "versionEndExcluding": "18.7.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "951073F9-924E-4D9C-8DA1-64E284326CC5", "versionEndExcluding": "26.3", "versionStartIncluding": "26.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "E899D2A7-973C-4A46-B479-C245E5DFABE9", "versionEndExcluding": "14.8.4", "versionStartIncluding": "14.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "A5F7A1AF-3DD7-4FA1-BF78-4855F83BB463", "versionEndExcluding": "15.7.4", "versionStartIncluding": "15.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "0488A377-7971-4703-8823-05BF1E23CF48", "versionEndExcluding": "26.3", "versionStartIncluding": "26.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "matchCriteriaId": "60137BD4-65B6-4962-B1E5-5F4EE279489B", "versionEndExcluding": "26.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "matchCriteriaId": "388EDB3F-A14E-4922-B88A-F1CB6DE50A2A", "versionEndExcluding": "26.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "matchCriteriaId": "F406F3D2-0AF3-4F83-A123-2AC07B3B094E", "versionEndExcluding": "26.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. Processing a maliciously crafted image may result in disclosure of process memory."}, {"lang": "es", "value": "El problema se abord\u00f3 con una gesti\u00f3n de memoria mejorada. Este problema se solucion\u00f3 en watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 y iPadOS 18.7.5, visionOS 26.3, iOS 26.3 y iPadOS 26.3. Procesar una imagen manipulada maliciosamente puede resultar en la divulgaci\u00f3n de la memoria del proceso."}], "id": "CVE-2026-20634", "lastModified": "2026-06-17T10:17:34.683", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20634", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-12T21:21:46.442346Z", "version": "2.0.3"}}]}, "published": "2026-02-11T23:16:06.610", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126346"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126347"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126348"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126349"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126350"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126351"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126352"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126353"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "ios_and_ipados", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,18.7)"}}], "product": "ios_and_ipados", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "macos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,15.7)"}}], "product": "macos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,14.8)"}}], "product": "macos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "tvos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "visionos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "watchos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-04-16T00:54:57.880928+00:00", "value": {"mitigation_remediation": ["Upgrade all affected Apple devices to the patched releases: iOS\u00a018.7.5/26.3, iPadOS\u00a018.7.5/26.3, macOS\u00a0Sequoia\u00a015.7.4, Sonoma\u00a014.8.4, Tahoe\u00a026.3, tvOS\u00a026.3, visionOS\u00a026.3, and watchOS\u00a026.3. ", "If an update cannot be applied immediately, restrict the processing of untrusted images on the device, for example by disabling features that allow arbitrary image rendering from unknown sources or by using content filters. ", "Maintain regular monitoring of security advisories from Apple and apply future updates promptly to mitigate similar memory handling issues."], "summary": {"action": "Apply Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "Apple devices running iOS, iPadOS, macOS, tvOS, visionOS, or watchOS are affected when they are not updated to the versions specified in the advisory. The fix is available in iOS 18.7.5 and 26.3, iPadOS 18.7.5 and 26.3, macOS\u00a0Sequoia\u00a015.7.4, Sonoma\u00a014.8.4, Tahoe\u00a026.3, tvOS\u00a026.3, visionOS\u00a026.3, and watchOS\u00a026.3.", "description_and_impact": "The vulnerability arises from incorrect memory handling during image processing on Apple operating systems, leading a crafted image to expose portions of process memory and potentially reveal sensitive data. This fault aligns with improper memory management and results in information disclosure.", "risk_and_exploitability": "The CVSS base score of 5.5 indicates moderate severity. EPSS is below 1\u202f%, meaning the chance of exploitation is low. The vulnerability is not listed in the CISA KEV catalog. Attackers would need to deliver a malicious image to the target device, likely through software that accepts image input or via a compromised app. Based on the description, the attack vector is inferred to be remote or local through unsolicited image content."}}}}, "created": "2026-02-12T09:02:42.279825+00:00", "title": "Memory Disclosure via Malicious Image Processing on Apple Platforms", "updated": "2026-04-16T01:00:19.958199+00:00", "vendors": ["apple", "apple$PRODUCT$ios_and_ipados", "apple$PRODUCT$macos", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}