CVE-2022-42856 (GCVE-0-2022-42856)

Vulnerability from cvelistv5 – Published: 2022-12-15 00:00 – Updated: 2025-10-21 23:15
VLAI CISA KEV
Summary
A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. 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 against versions of iOS released before iOS 15.1..
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 against versions of iOS released before iOS 15.1.
Assigner
References
Impacted products
Vendor Product Version
Apple tvOS Affected: unspecified , < 16.2 (custom)
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Apple tvOS Affected: unspecified , < 13.1 (custom)
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Apple tvOS Affected: unspecified , < 15.7 (custom)
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Apple tvOS Affected: unspecified , < 16.1 (custom)
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Apple tvOS Affected: unspecified , < 16.2 (custom)
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CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: cffe0c2a-99d9-445d-a469-3d9620845370

Vulnerability ID: CVE-2022-42856

Status: Confirmed

Status Updated: 2022-12-14 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-12-14
Asserted: 2022-12-14
Scope
Notes: KEV entry: Apple iOS Type Confusion Vulnerability | Affected: Apple / iOS | Description: Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution. | Required action: Apply updates per vendor instructions. | Due date: 2023-01-04 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://support.apple.com/en-us/HT213516; https://nvd.nist.gov/vuln/detail/CVE-2022-42856
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-843
Feed CISA Known Exploited Vulnerabilities Catalog
Product iOS
Due Date 2023-01-04
Date Added 2022-12-14
Vendorproject Apple
Vulnerabilityname Apple iOS Type Confusion Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:25 UTC | Updated: 2026-02-06 07:53 UTC
Show details on NVD website
To clipboard 

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\"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-2022-42856\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-28T21:34:19.303837Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2022-12-14\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2022-12-14T00:00:00.000Z\", \"value\": \"CVE-2022-42856 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856\", \"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\": \"2025-01-28T21:34:17.053Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Apple\", \"product\": \"tvOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"16.2\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"tvOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"13.1\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"tvOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": 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[\"mailing-list\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2022/Dec/22\", \"name\": \"20221220 APPLE-SA-2022-12-13-3 iOS 16.1.2\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2022/Dec/26\", \"name\": \"20221220 APPLE-SA-2022-12-13-7 tvOS 16.2\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2022/Dec/28\", \"name\": \"20221220 APPLE-SA-2022-12-13-9 Safari 16.2\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/12/26/1\", \"name\": \"[oss-security] 20221226 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0011\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://security.gentoo.org/glsa/202305-32\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A type confusion issue was addressed with improved state handling. 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      "cveMetadata": "{\"cveId\": \"CVE-2022-42856\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:15:29.832Z\", \"dateReserved\": \"2022-10-11T00:00:00.000Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2022-12-15T00:00:00.000Z\", \"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.