# CVE-2026-65344 — Apple iOS and iPadOS

> As of 2026-09-16, CVE-2026-65344 is a HIGH-severity vulnerability in Apple iOS and iPadOS, CVSS v3.1 7.8, EPSS 0.1% (6.2th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-65344, most recently “Apple Ships 273-CVE Coordinated Security Update Across iOS 27, macOS, watchOS, tvOS, visionOS, Safari, and Xcode — Bundles a Previously KEV-Listed Pre-Auth Screen Sharing RCE”.

**Last updated:** 2026-09-16

## What is CVE-2026-65344?

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27. Processing a maliciously crafted video file may lead to unexpected app termination.

The record classifies CVE-2026-65344 under weakness class [CWE-787](https://intel.threadlinqs.com/cwe/CWE-787). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 4 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 39 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.8 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 6.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-14, last modified 2026-09-16

## Is CVE-2026-65344 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Apple](https://intel.threadlinqs.com/vendors/apple): iOS and iPadOS, macOS, tvOS, visionOS

## How to fix CVE-2026-65344

Vendor advisory: [https://support.apple.com/en-us/149034](https://support.apple.com/en-us/149034). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-65344

1 tracked threat in the Threadlinqs corpus references CVE-2026-65344, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Apple Ships 273-CVE Coordinated Security Update Across iOS 27, macOS, watchOS, tvOS, visionOS, Safari, and Xcode — Bundles a Previously KEV-Listed Pre-Auth Screen Sharing RCE](https://intel.threadlinqs.com/threat/TL-2026-2522) — CRITICAL · 2026-09-15

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [support.apple.com](https://support.apple.com/en-us/149034)
- [support.apple.com (149035)](https://support.apple.com/en-us/149035)
- [support.apple.com (149036)](https://support.apple.com/en-us/149036)
- [support.apple.com (149038)](https://support.apple.com/en-us/149038)
- [support.apple.com (149041)](https://support.apple.com/en-us/149041)

_Showing 5 of 7 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-65344
Full detection coverage and IOCs for threats exploiting CVE-2026-65344 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp