Cyber Resilience

CVE-2023-41064

Memory Safety in Apple Macos 11.0 – 11.7.10

CISA KEVActive ExploitationEUVD ExploitedMemory Safety
Published
07 September 2023
Modified
06 November 2025
KEV Added
11 September 2023
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.15 96th percentile
Risk Priority 83 floored blend · peak EPSS

Summary

CVE-2023-41064 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Apple Macos. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 4% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

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 buffer overflow vulnerability addressed through improved memory handling affects image processing components in multiple Apple operating systems. Impacted versions include iOS 16.6.1 and iPadOS 16.6.1, macOS Monterey 12.6.9, macOS Ventura 13.5.2, iOS 15.7.9 and iPadOS 15.7.9, and macOS Big Sur 11.7.10. The flaw, tracked as CVE-2023-41064 with a CVSS score of 7.8 and CWE-120, can be triggered by processing a maliciously crafted image and may result in arbitrary code execution.

An attacker can exploit the issue without privileges by supplying a crafted image file that a user opens or processes on an affected device. Successful exploitation grants the ability to execute arbitrary code with the privileges of the affected process, potentially compromising the system.

Apple security advisories detail fixes released in the listed OS versions and note that the company is aware of reports indicating the vulnerability may have been actively exploited in the wild. The associated EPSS score has reached a peak of 0.8990 with a current value of 0.8535.

EU & UK References

Vulnerability Data

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 16.6.1 and iPadOS 16.6.1, macOS Monterey 12.6.9, macOS Ventura 13.5.2, iOS 15.7.9 and iPadOS 15.7.9, macOS Big Sur 11.7.10. Processing a maliciously crafted image…

more

may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CWE(s)
KEV Date Added
11 September 2023

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.
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.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2021-30983Same product: Apple Ipadosboth on KEV
CVE-2023-27955Same product: Apple Ipados
CVE-2025-43520Same product: Apple Ipadosboth on KEV
CVE-2026-43776Same product: Apple Ipados
CVE-2022-22587Same product: Apple Ipadosboth on KEV
CVE-2023-28206Same product: Apple Ipadosboth on KEV
CVE-2022-32917Same product: Apple Ipadosboth on KEV
CVE-2021-30900Same product: Apple Ipadosboth on KEV
CVE-2023-28205Same product: Apple Ipadosboth on KEV
CVE-2022-22620Same product: Apple Ipadosboth on KEV

Affected Assets

apple
ipados
≤ 15.7.9 · 16.0 — 16.6.1
apple
iphone os
≤ 15.7.9 · 16.0 — 16.6.1
apple
macos
11.0 — 11.7.10 · 12.0 — 12.6.9 · 13.0 — 13.5.2

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

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

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 development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.

ID.RA-01 partial match
prevents

Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.

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.

prevents

Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.

finds

Security testing in development and acceptance can detect buffer overflows through fuzzing and static analysis, though it does not prevent them at the source.

prevents

Secure development life cycle mandates processes that can include input validation and bounds checking to prevent buffer overflows.

prevents

Application security requirements can specify input-size validation and safe buffer handling to mitigate classic buffer overflows.

prevents

Secure system architecture and engineering principles promote defensive coding patterns that reduce the likelihood of unchecked buffer copies.

References