# Meta WhatsApp for iOS vulnerabilities

Source: https://junglewise.ai/threats/technologies/whatsapp-for-ios  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/whatsapp-for-ios.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Meta WhatsApp for iOS: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-23866, was published on 1 May 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (2 critical, 2 exploited in the wild)

## About Meta WhatsApp for iOS

WhatsApp messenger application for iOS devices.

## Latest Meta WhatsApp for iOS vulnerabilities

- [CVE-2026-23866: Meta WhatsApp improper validation in AI rich response messages](https://junglewise.ai/threats/cve-2026-23866-meta-whatsapp-improper-validation-in-ai-rich-response-messages) (medium, CVSS 4.3, published 1 May 2026)
- [CVE-2025-55177: Meta WhatsApp incorrect authorization in linked device synchronization](https://junglewise.ai/threats/cve-2025-55177-meta-whatsapp-incorrect-authorization-in-linked-device) (critical, exploited in the wild, CVSS 5.4, published 2 Sep 2025)
- [CVE-2019-3568: WhatsApp VOIP Stack Buffer Overflow Vulnerability](https://junglewise.ai/threats/cve-2019-3568-whatsapp-voip-stack-buffer-overflow-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 19 Apr 2022)

## Most severe Meta WhatsApp for iOS vulnerabilities

- [CVE-2019-3568: WhatsApp VOIP Stack Buffer Overflow Vulnerability](https://junglewise.ai/threats/cve-2019-3568-whatsapp-voip-stack-buffer-overflow-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 19 Apr 2022)
- [CVE-2025-55177: Meta WhatsApp incorrect authorization in linked device synchronization](https://junglewise.ai/threats/cve-2025-55177-meta-whatsapp-incorrect-authorization-in-linked-device) (critical, exploited in the wild, CVSS 5.4, published 2 Sep 2025)
- [CVE-2026-23866: Meta WhatsApp improper validation in AI rich response messages](https://junglewise.ai/threats/cve-2026-23866-meta-whatsapp-improper-validation-in-ai-rich-response-messages) (medium, CVSS 4.3, published 1 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Meta technologies

- [Meta React Server Components (Parcel)](https://junglewise.ai/threats/technologies/react-server-components-parcel): 11 vulnerabilities
- [Meta React Server Components (Turbopack)](https://junglewise.ai/threats/technologies/react-server-components-turbopack): 11 vulnerabilities
- [Meta React Server Components (Webpack)](https://junglewise.ai/threats/technologies/react-server-components-webpack): 11 vulnerabilities
- [Meta Proxygen](https://junglewise.ai/threats/technologies/meta-proxygen): 6 vulnerabilities
- [Meta Hermes](https://junglewise.ai/threats/technologies/hermes): 4 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Meta WhatsApp for iOS vulnerabilities", https://junglewise.ai/threats/technologies/whatsapp-for-ios, 12 November 2026.