CVE-2023-32439 (GCVE-0-2023-32439)

Vulnerability from cvelistv5 – Published: 2023-06-23 00:00 – Updated: 2025-10-21 23:05
VLAI CISA KEV
Summary
A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
Vendor Product Version
Apple iOS and iPadOS Affected: unspecified , < 15.7 (custom)
Create a notification for this product.
Apple Safari Affected: unspecified , < 16.5 (custom)
Create a notification for this product.
Apple iOS and iPadOS Affected: unspecified , < 16.5 (custom)
Create a notification for this product.
Apple macOS Affected: unspecified , < 13.4 (custom)
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a94af202-0895-48d9-9509-33ad07a2ba0a

Vulnerability ID: CVE-2023-32439

Status: Confirmed

Status Updated: 2023-06-23 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-06-23
Asserted: 2023-06-23
Scope
Notes: KEV entry: Apple Multiple Products WebKit Type Confusion Vulnerability | Affected: Apple / Multiple Products | Description: Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing. | Required action: Apply updates per vendor instructions. | Due date: 2023-07-14 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814, https://support.apple.com/en-us/HT213816; https://nvd.nist.gov/vuln/detail/CVE-2023-32439
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-843
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2023-07-14
Date Added 2023-06-23
Vendorproject Apple
Vulnerabilityname Apple Multiple Products WebKit Type Confusion Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://support.apple.com/en-us/HT213811\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/en-us/HT213816\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/en-us/HT213814\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/en-us/HT213813\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/kb/HT213814\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/kb/HT213816\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.gentoo.org/glsa/202401-04\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T15:18:37.578Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-32439\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-01-09T15:34:08.134869Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2023-06-23\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32439\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-06-23T00:00:00.000Z\", \"value\": \"CVE-2023-32439 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32439\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-843\", \"description\": \"CWE-843 Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-03T13:56:15.882Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"15.7\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"Safari\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"16.5\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"16.5\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"13.4\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://support.apple.com/en-us/HT213811\"}, {\"url\": \"https://support.apple.com/en-us/HT213816\"}, {\"url\": \"https://support.apple.com/en-us/HT213814\"}, {\"url\": \"https://support.apple.com/en-us/HT213813\"}, {\"url\": \"https://support.apple.com/kb/HT213814\"}, {\"url\": \"https://support.apple.com/kb/HT213816\"}, {\"url\": \"https://security.gentoo.org/glsa/202401-04\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\"}]}], \"providerMetadata\": {\"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\", \"dateUpdated\": \"2024-01-05T14:06:24.618Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-32439\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:44.317Z\", \"dateReserved\": \"2023-05-08T00:00:00.000Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2023-06-23T00:00:00.000Z\", \"assignerShortName\": \"apple\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.