# CVE-2026-43760 — Apple macOS

> As of 2026-07-30, CVE-2026-43760 is a HIGH-severity vulnerability in Apple macOS, CVSS v3.1 8.6, EPSS 0.2% (15.3th percentile). Threadlinqs Intelligence links 3 tracked threat campaigns to CVE-2026-43760, 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:** 2026-07-30

## What is CVE-2026-43760?

An access issue was addressed with improved access restrictions. This issue is fixed in macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to access user-sensitive data.

The record classifies CVE-2026-43760 under weakness class [CWE-284](https://cwe.mitre.org/data/definitions/284.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 53 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.6 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 15.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-27, last modified 2026-07-30

## Is CVE-2026-43760 being exploited?

Weaponised exploit code for CVE-2026-43760 is publicly available. 1 public proof-of-concept repository is tracked for this identifier.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-43760.md) (trickest)

## Affected products and versions

- **Apple**: macOS

## How to fix CVE-2026-43760

Vendor advisory: [https://support.apple.com/en-us/128067](https://support.apple.com/en-us/128067). 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-2026-43760

3 tracked threats in the Threadlinqs corpus reference CVE-2026-43760, 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
- [CVE-2026-43760: macOS Screen Sharing Logic Flaw Allows VNC-Authenticated Root Command Execution](https://intel.threadlinqs.com/threat/TL-2026-2038) — CRITICAL · 2026-08-16
- [CVE-2026-65400: macOS Screen Sharing Authentication Bypass Grants Unauthenticated Root Access](https://intel.threadlinqs.com/threat/TL-2026-1925) — CRITICAL · 2026-08-07

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-08-17. 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/128067)
- [support.apple.com (128072)](https://support.apple.com/en-us/128072)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-43760
Full detection coverage and IOCs for threats exploiting CVE-2026-43760 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp