Exploitation evidence
Known exploited · CISA KEV listed
Added 2021-11-03. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-05-03. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Apple / iOS
Default status: Not specified
- affected: unspecified to < iOS 13.5.1 and iPadOS 13.5.1 (custom)
Apple / macOS
Default status: Not specified
- affected: unspecified to < macOS Catalina 10.15.5 Supplemental Update (custom)
Apple / tvOS
Default status: Not specified
- affected: unspecified to < tvOS 13.4.6 (custom)
Apple / watchOS
Default status: Not specified
- affected: unspecified to < watchOS 6.2.6 (custom)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.00829,
"percentile": 0.58004
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.00829,
"percentile": 0.57835
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.00829,
"percentile": 0.57785
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.00829,
"percentile": 0.57769
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.00829,
"percentile": 0.57753
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.00829,
"percentile": 0.57695
}06 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
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"dateUpdated": "2024-08-04T10:43:05.468Z",
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"baseScore": 7.8,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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},
{
"other": {
"content": {
"id": "CVE-2020-9859",
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},
{
"Automatable": "no"
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{
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"role": "CISA Coordinator",
"timestamp": "2025-01-29T17:39:52.955621Z",
"version": "2.0.3"
},
"type": "ssvc"
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},
{
"other": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"references": [
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"tags": [
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"cna": {
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},
{
"product": "macOS",
"vendor": "Apple",
"versions": [
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},
{
"product": "tvOS",
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"versions": [
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},
{
"product": "watchOS",
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"versions": [
{
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],
"providerMetadata": {
"dateUpdated": "2020-06-05T14:40:05.000Z",
"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"shortName": "apple"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://support.apple.com/HT211214"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "product-security@apple.com",
"ID": "CVE-2020-9859",
"STATE": "PUBLIC"
},
"affects": {
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]
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},
{
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"version": {
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"version_value": "macOS Catalina 10.15.5 Supplemental Update"
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}
},
{
"product_name": "tvOS",
"version": {
"version_data": [
{
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},
{
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}
]
},
"problemtype": {
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"value": "An application may be able to execute arbitrary code with kernel privileges"
}
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},
"references": {
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{
"name": "https://support.apple.com/HT211214",
"refsource": "MISC",
"url": "https://support.apple.com/HT211214"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"assignerShortName": "apple",
"cveId": "CVE-2020-9859",
"datePublished": "2020-06-05T14:40:05.000Z",
"dateReserved": "2020-03-02T00:00:00.000Z",
"dateUpdated": "2025-10-21T23:35:42.872Z",
"state": "PUBLISHED"
},
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}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.00829,
"percentile": 0.57665
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.00829,
"percentile": 0.5764
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.00829,
"percentile": 0.57576
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.00829,
"percentile": 0.57534
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2020-9859",
"cwes": [
"CWE-415"
],
"dateAdded": "2021-11-03",
"dueDate": "2022-05-03",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2020-9859",
"product": "Multiple Products",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Apple iOS, iPadOS, macOS, watchOS, and tvOS contain an unspecified vulnerability that may allow an application to execute code with kernel privileges.",
"vendorProject": "Apple",
"vulnerabilityName": "Apple Multiple Products Code Execution Vulnerability"
}