Security Resilience

CVE-2023-43010

Memory Safety in Apple Ipados ≤ 15.8.7

Published
12 March 2026
Modified
15 July 2026
Patch / 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 0.0092 59th percentile
Risk Priority 66 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-43010 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Apple Ipados. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 41% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — 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.

CVE-2023-43010 is a memory corruption vulnerability stemming from inadequate memory handling, classified under CWE-787 (Out-of-bounds Write). It affects Apple's WebKit engine, as used in Safari and integrated into iOS, iPadOS, and macOS Sonoma. The flaw is triggered by processing maliciously crafted web content and was assigned a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Remote attackers can exploit this vulnerability by enticing users to interact with specially crafted web content, such as visiting a malicious website, requiring no privileges but relying on user interaction. Successful exploitation could result in high-impact confidentiality, integrity, and availability violations, potentially enabling arbitrary code execution, data theft, or system compromise on affected devices.

Apple addressed the issue through improved memory handling in multiple releases: iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, as well as iOS 15.8.7 and iPadOS 15.8.7. Security practitioners should prioritize updating affected systems to these versions or later, with further details available in Apple's security advisories at https://support.apple.com/en-us/120300, https://support.apple.com/en-us/120877, https://support.apple.com/en-us/120879, https://support.apple.com/en-us/126632, and https://support.apple.com/en-us/126646.

EU & UK References

Vulnerability Data

The issue was addressed with improved memory handling. This issue is fixed in iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead…

more

to memory corruption.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
T1006 Direct Volume Access Stealth
Adversaries may directly access a volume to bypass file access controls and file system monitoring.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-43501Same product: Apple Ipados
CVE-2026-20664Same product: Apple Ipados
CVE-2024-44218Same product: Apple Ipados
CVE-2023-32435Same product: Apple Ipados
CVE-2026-20644Same product: Apple Ipados
CVE-2026-28857Same product: Apple Ipados
CVE-2025-24209Same product: Apple Ipados
CVE-2022-22587Same product: Apple Ipados
CVE-2023-23531Same product: Apple Ipados
CVE-2022-32917Same product: Apple Ipados

Affected Assets

apple
safari
≤ 17.2
apple
ipados
≤ 15.8.7 · 16.0 — 16.7.15 · 17.0 — 17.2
apple
iphone os
≤ 15.8.7 · 16.0 — 16.7.15 · 17.0 — 17.2
apple
macos
≤ 14.2

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)
  • V5.2.1

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation (including fuzzing and bounds checks) finds out-of-bounds write flaws before deployment.

Input validation directly enforces size checks before buffer copies.

Requiring documented secure-development standards and tools can mandate bounds-checked coding practices that avoid the weakness.

Engineering principles require bounds checking and safe buffer handling in design.

Memory-protection mechanisms limit the exploitability and blast radius of a successful out-of-bounds write.

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.

ID.RA-01 partial match
blocks

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

PR.PS-06 partial match
blocks

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

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.

removes
removes
removes
removes
removes

References