CVE-2026-20621 (GCVE-0-2026-20621)
Vulnerability from cvelistv5
Published
2026-02-11 22:58
Modified
2026-04-02 18:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- An app may be able to cause unexpected system termination or corrupt kernel memory
Summary
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, visionOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-20621",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-18T15:06:03.341586Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-18T15:06:07.326Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"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": "visionOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"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, visionOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "An app may be able to cause unexpected system termination or corrupt kernel memory",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-02T18:16:19.215Z",
"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"shortName": "apple"
},
"references": [
{
"url": "https://support.apple.com/en-us/126346"
},
{
"url": "https://support.apple.com/en-us/126347"
},
{
"url": "https://support.apple.com/en-us/126348"
},
{
"url": "https://support.apple.com/en-us/126349"
},
{
"url": "https://support.apple.com/en-us/126350"
},
{
"url": "https://support.apple.com/en-us/126353"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"assignerShortName": "apple",
"cveId": "CVE-2026-20621",
"datePublished": "2026-02-11T22:58:26.506Z",
"dateReserved": "2025-11-11T14:43:07.859Z",
"dateUpdated": "2026-04-02T18:16:19.215Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20621\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-18T15:06:03.341586Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-18T15:05:55.855Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"26.3\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"visionOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"26.3\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"15.7\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"14.8\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"26.3\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"18.7\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://support.apple.com/en-us/126348\"}, {\"url\": \"https://support.apple.com/en-us/126353\"}, {\"url\": \"https://support.apple.com/en-us/126349\"}, {\"url\": \"https://support.apple.com/en-us/126350\"}, {\"url\": \"https://support.apple.com/en-us/126346\"}, {\"url\": \"https://support.apple.com/en-us/126347\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"An app may be able to cause unexpected system termination or corrupt kernel memory\"}]}], \"providerMetadata\": {\"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\", \"dateUpdated\": \"2026-02-11T22:58:26.506Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20621\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-18T15:06:07.326Z\", \"dateReserved\": \"2025-11-11T14:43:07.859Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2026-02-11T22:58:26.506Z\", \"assignerShortName\": \"apple\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…