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Full vulnerability report · 2022
CVE-2022-42856High confidence

Apple iOS Type Confusion Vulnerability

Apple · iOS

8.8HighCVSS 3.1
Recommended action
Protect now

CISA confirms exploitation in the wild and lists 2023-01-04 as the remediation due date.

Fix not verified
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archiveqtwebkit-opensource-srcUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical record ↗Source updated 8 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-45919

CISA KEV mirrored by ENISA

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..

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 14 Dec 2022. Evidence sources: cisa_kev.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
11 linked advisory records
Explicit mitigation evidence

Only statements that explicitly mention a fix, patch, update, workaround or mitigation are shown here.

  • csaf_suse · SUSE-SU-2022:4642-1Security update for webkit2gtk3
  • csaf_redhat · RHSA-2025:10364Red Hat Security Advisory: webkitgtk4 security update
  • csaf_suse · SUSE-SU-2022:4641-1Security update for webkit2gtk3
  • csaf_suse · SUSE-SU-2023:0061-1Security update for webkit2gtk3
  • csaf_redhat · RHSA-2023:0021Red Hat Security Advisory: webkit2gtk3 security update
  • csaf_suse · SUSE-SU-2022:4634-1Security update for webkit2gtk3
  • csaf_redhat · RHSA-2023:0016Red Hat Security Advisory: webkit2gtk3 security update
Recommended actionProtect now

CISA confirms exploitation in the wild and lists 2023-01-04 as the remediation due date.

Fix not verified
01

What, why and how

Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

What

Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

Why

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

Why

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-12-14.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Access of Resource Using Incompatible Type ('Type Confusion') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-843 ↗

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion'). The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-843CISA KEV
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2022-45919Known-exploited evidence recorded

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..

Official EUVD record
BSI · German · WID-SEC-W-2022-2313Apple macOS: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um den Benutzer zu täuschen, Informationen offenzulegen, Sicherheitsmechanismen zu umgehen, Rechte zu erweitern und beliebigen Code mit Kernel-Rechten auszuführen.

Official advisory
BSI · German · WID-SEC-W-2023-0022Red Hat Enterprise Linux (webkit2gtk3): Schwachstelle ermöglicht Codeausführung

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux bezüglich der Komponente webkit2gtk3 ausnutzen, um beliebigen Programmcode auszuführen.

Official advisory
BSI · German · WID-SEC-W-2022-2321Apple iOS: Mehrere Schwachstellen ermöglichen Privilegieneskalation

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um seine Privilegien zu erhöhen.

Official advisory
BSI · German · WID-SEC-W-2022-2314Apple Safari: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple Safari ausnutzen, um Code auszuführen, Sicherheitsvorkehrungen zu umgehen und Informationen offenzulegen.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0056Multiples vulnérabilités dans les produits Apple

du 23 janvier 2023 https://support.apple.com/en-us/HT213604 Bulletin de sécurité Apple HT213605 du 23 janvier 2023 https://support.apple.com/en-us/HT213605 Bulletin de sécurité Apple HT213606 du 23 janvier 2023 https://support.apple.com/en-us/HT213606 Référence CVE CVE-2022-32221 https://www.cve.org/CVERecord?id=CVE-2022-32221 Référence CVE CVE-2022-32915 https://www.cve.org/CVERecord?id=CVE-2022-32915 Référence CVE CVE-2022-35252 https://www.cve.org/CVERecord?id=CVE-2022-35252 Référence CVE CVE-2022-35260 https://www.cve.org/CVERecord?id=CVE-2022-35260 Référence CVE CVE-2022-3705 https://www.cve.org/CVERecord?id=CVE-2022-3705 Référence CVE CVE-2022-42856 https://www.cve.org/CVERecord?id=CVE-2022-42856 Référence CVE CVE-2022-42915 https://www.cve.org/CVERecord?id=CVE-2022-42915 Référence CVE CVE-2022-42916 https://www.cve.org/CVERecord?id=CVE-2022-42916 Référence CVE CVE-2023-23493 https://www.cve.org/CVERecord?id=CVE-2023-23493 Référence CVE CVE-2023-23496 https://www.cve.org/CVERecord?id=CVE-2023-23496 Référence CVE CVE-2023-23497 https://www.cve.org/CVERecord?id=CVE-2023-23497 Référence CVE CVE-2023-23498 https://www.cve.org/CVERecord?id=CVE-2023-23498 Référence CVE CVE-2023-23499 https://www.cve.org/CVERecord?id=CVE-2023-23499 Référence CVE CVE-2023-23500 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1108Multiples vulnérabilités dans les produits Apple

d?id=CVE-2022-42847 Référence CVE CVE-2022-42848 https://www.cve.org/CVERecord?id=CVE-2022-42848 Référence CVE CVE-2022-42849 https://www.cve.org/CVERecord?id=CVE-2022-42849 Référence CVE CVE-2022-42850 https://www.cve.org/CVERecord?id=CVE-2022-42850 Référence CVE CVE-2022-42851 https://www.cve.org/CVERecord?id=CVE-2022-42851 Référence CVE CVE-2022-42852 https://www.cve.org/CVERecord?id=CVE-2022-42852 Référence CVE CVE-2022-42853 https://www.cve.org/CVERecord?id=CVE-2022-42853 Référence CVE CVE-2022-42854 https://www.cve.org/CVERecord?id=CVE-2022-42854 Référence CVE CVE-2022-42855 https://www.cve.org/CVERecord?id=CVE-2022-42855 Référence CVE CVE-2022-42856 https://www.cve.org/CVERecord?id=CVE-2022-42856 Référence CVE CVE-2022-42859 https://www.cve.org/CVERecord?id=CVE-2022-42859 Référence CVE CVE-2022-42861 https://www.cve.org/CVERecord?id=CVE-2022-42861 Référence CVE CVE-2022-42862 https://www.cve.org/CVERecord?id=CVE-2022-42862 Référence CVE CVE-2022-42863 https://www.cve.org/CVERecord?id=CVE-2022-42863 Référence CVE CVE-2022-42864 https://www.cve.org/CVERecord?id=CVE-2022-42864 Référence CVE CVE-2022-42865 https://www.cve.org/CVERecord?id=CVE-2022-42865 Référence CVE CVE-2022-42866 https://www.cve.org/CVERecord?id=CVE-2022-42866 Référence CVE CVE-2022-42867 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
unspecified < 16.2; unspecified < 13.1; unspecified < 15.7; unspecified < 16.1
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 15 Dec 2022 · Last source change 21 Oct 2025, 23:15 UTC · CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-45919
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
ENISA EUVD · EUVD-2022-45919↗CISA KEV record↗CVE authority or vendor reference↗Vendor advisory↗Vendor advisory↗Vendor advisory↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-42856 · cve.blacktree.nl