Cyber Resilience

CVE-2024-23222

Memory Safety in Apple Ipados ≤ 15.8.7

CISA KEVActive ExploitationEUVD ExploitedMemory Safety
Published
23 January 2024
Modified
17 June 2026
KEV Added
23 January 2024
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.11 95th percentile
Risk Priority 90 floored blend · peak EPSS

Summary

CVE-2024-23222 is a high-severity Type Confusion (CWE-843) vulnerability in Apple Ipados. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 5% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

A type confusion vulnerability addressed through improved input validation affects WebKit in multiple Apple platforms. Impacted software includes Safari 17.3 along with iOS 15.8.7, iPadOS 15.8.7, iOS 16.7.5, iPadOS 16.7.5, iOS 17.3, iPadOS 17.3, macOS Monterey 12.7.3, macOS Sonoma 14.3, macOS Ventura 13.6.4, tvOS 17.3, and visionOS 1.0.2. The flaw permits arbitrary code execution when processing maliciously crafted web content and carries a CVSS 3.1 base score of 8.8.

An unauthenticated remote attacker can exploit the issue by convincing a user to visit a specially crafted website, achieving code execution in the context of the browser process without requiring user privileges beyond normal web browsing. The vulnerability is linked to the Coruna exploit and was initially shipped for current iOS devices in version 17.3 on 22 January 2024, with the listed updates extending the same fix to devices that cannot receive the newest major releases.

Apple security advisories recommend installing the listed updates, which are available via the standard software update mechanisms on each platform. The current EPSS score stands at 0.0062.

EU & UK References

Vulnerability Data

A type confusion issue was addressed with improved checks. This issue is fixed in Safari 17.3, iOS 15.8.7 and iPadOS 15.8.7, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.3, macOS Sonoma 14.3, macOS Ventura 13.6.4,…

more

tvOS 17.3, visionOS 1.0.2. Processing maliciously crafted web content may lead to arbitrary code execution. This fix associated with the Coruna exploit was shipped in iOS 17.3 on January 22, 2024. This update brings that fix to devices that cannot update to the latest iOS version.

CWE(s)
CWE-843
KEV Date Added
23 January 2024

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2022-42856Same product: Apple Ipadosboth on KEV
CVE-2023-23529Same product: Apple Ipadosboth on KEV
CVE-2021-30869Same product: Apple Ipadosboth on KEV
CVE-2024-54505Same product: Apple Ipados
CVE-2025-31206Same product: Apple Ipados
CVE-2025-43529Same product: Apple Ipadosboth on KEV
CVE-2025-30445Same product: Apple Ipados
CVE-2025-43541Same product: Apple Ipados
CVE-2025-24213Same product: Apple Ipados
CVE-2020-27932Same product: Apple Ipadosboth on KEV

Affected Assets

apple
safari
≤ 17.3
apple
ipados
≤ 15.8.7 · 16.0 — 16.7.5 · 17.0 — 17.3
apple
iphone os
≤ 15.8.7 · 16.0 — 16.7.5 · 17.0 — 17.3
apple
macos
12.0 — 12.7.3 · 13.0 — 13.6.4 · 14.0 — 14.3
apple
tvos
≤ 17.3
apple
visionos
≤ 1.0.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.5.2
  • V3.2.3
  • V15.3.5

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation (including fuzzing and type-aware analysis) directly finds type-confusion flaws before deployment.

SA-8 Security and Privacy Engineering Principles partial match

Engineering principles can require use of type-safe languages, static typing, and runtime type checks that structurally avoid allocating one type and accessing another.

SI-16 Memory Protection partial match

Memory-protection controls limit the blast radius when a type-confusion access occurs but do not stop the flaw itself.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent type-confusion flaws via safe typing, static analysis, and code review while the control itself addresses many additional weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect type-confusion vulnerabilities through fuzzing and static analysis.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates type-safe design and review that can catch type-confusion flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify strong typing and interface contracts that reduce type confusion.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles promote type-safe languages and memory-safety mechanisms that mitigate type confusion.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly forbid unsafe type casts and require static-analysis checks for type confusion.

References