CVE-2023-42956
Status: ModifiedMedium (6.5)—
The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.98%
- Percentile among all scored CVEs: 61
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (4)
CWEs
- NVD-CWE-noinfo
References
- http://www.openwall.com/lists/oss-security/2024/03/26/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/
- https://support.apple.com/en-us/HT214035
- https://support.apple.com/en-us/HT214036
- https://support.apple.com/en-us/HT214039
- https://support.apple.com/kb/HT214039
- http://www.openwall.com/lists/oss-security/2024/03/26/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/
- https://support.apple.com/en-us/HT214035
- https://support.apple.com/en-us/HT214036
- https://support.apple.com/en-us/HT214039
- https://support.apple.com/kb/HT214039
Raw JSON (NVD)
Show
{
"id": "CVE-2023-42956",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-42956",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-04-08T17:46:52.370942Z"
}
}
],
"cvssMetricV31": [
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"source": "nvd@nist.gov",
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"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"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
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"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"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "product-security@apple.com",
"affectedData": [
{
"vendor": "Apple",
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"versions": [
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"lessThan": "17.2",
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]
},
{
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},
{
"vendor": "Apple",
"product": "macOS",
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}
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}
],
"published": "2024-03-28T16:15:08.377",
"references": [
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},
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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},
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{
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"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service."
},
{
"lang": "es",
"value": "El problema se solucionó mejorando el manejo de la memoria. Este problema se solucionó en Safari 17.2, iOS 17.2 y iPadOS 17.2, macOS Sonoma 14.2. El procesamiento de contenido web puede dar lugar a una denegación de servicio."
}
],
"lastModified": "2026-06-17T06:24:56.343",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A894FAB1-74AE-4B4F-A005-ED6A67606414",
"versionEndExcluding": "17.2"
},
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"matchCriteriaId": "00FC779B-E45C-4B34-976F-490C38C22C67",
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{
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"vulnerable": true,
"matchCriteriaId": "6892DEBD-024E-414B-9282-DCCCF23A3BDD",
"versionEndExcluding": "14.2",
"versionStartIncluding": "14.0"
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],
"operator": "OR"
}
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}
],
"sourceIdentifier": "product-security@apple.com"
}