macOS Monterey 12.7.3 Security Update

What macOS Monterey 12.7.3 Fixes

macOS Monterey 12.7.3, released January 22, 2024, fixes 9 vulnerabilities in 7 parts of the system, according to Apple's security advisory.

Apple says one of these flaws — CVE-2024-23222 — may already have been exploited. That makes macOS Monterey 12.7.3 an update to install now rather than at the weekend.

It has since been superseded: the newest security release for macOS Monterey is macOS Monterey 12.7.6, from July 29, 2024, which includes these fixes.

Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.

Exploited Before the Fix

Apple flags a fix as possibly exploited when it has a credible report that the flaw was used against real people before the patch. This one is the reason to update today.

• WebKit Exploited

  Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited.

  A type confusion issue was addressed with improved checks.

  CVE-2024-23222

Which Devices Get macOS Monterey 12.7.3

Apple lists macOS Monterey 12.7.3 for: macOS Monterey.

How to Install macOS Monterey 12.7.3

On the Mac, open System Settings → General → Software Update. Macs that cannot run the newest macOS are offered the update for their own version there.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past macOS Monterey 12.7.3 there is nothing to do.

Every Fix in macOS Monterey 12.7.3

The rest of Apple's advisory — every fix not already listed above, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.

• Apple Neural Engine

  An app may be able to execute arbitrary code with kernel privileges

  The issue was addressed with improved memory handling.

  CVE-2024-23212

• Accessibility

  An app may be able to access sensitive user data

  A privacy issue was addressed with improved private data redaction for log entries.

  CVE-2023-42937

• Mail Search

  An app may be able to access sensitive user data

  This issue was addressed with improved redaction of sensitive information.

  CVE-2024-23207

• Power Manager

  An app may be able to corrupt coprocessor memory

  The issue was addressed with improved checks.

  CVE-2024-27791

• curl

  Multiple issues in curl

  Multiple issues were addressed by updating to curl version 8.4.0.

  CVE-2023-38545 CVE-2023-38039 CVE-2023-38546

• ImageIO

  Processing a maliciously crafted image may result in disclosure of process memory

  The issue was addressed with improved checks.

  CVE-2023-42888

macOS Monterey Security Release History

macOS Monterey 12.7.3 in context: the security releases Apple has published for macOS Monterey, newest first, with the number of fixes each carried.

The Same Fixes Elsewhere

Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:

Frequently Asked Questions