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Dossier · Vulnerability

Actively exploited · CISA KEV · NVD published 2026-09-28

CVE-2026-86950

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

  1. KEV
  2. 3 days →First PoC

Signals

Exploited in the wild
Yesadded 2026-09-29 · due 2026-10-13. An observation, not a forecast.
EPSS · 30-day forecast
1%Chance of exploitation in the next 30 days, 69th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD · HIGH
8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

5 known · links only

GitHub PoCs · by trust, then stars5

  1. msuiche/hotcell ↗Trust ok 100

    Runtime exploit monitor for Apple document/image pipelines (iOS/macOS) — EXPMON concept: Frida agent + behavioral rules. First target: the CVE-2026-86950 glyph chain.

    ★ 9 · created 2026-10-01

  2. decalage2/detect_CVE-2026-86950 ↗Trust ok 100

    A python tool to detect PDF files exploiting CVE-2026-86950

    ★ 5 · created 2026-10-02

  3. 0xBlackash/CVE-2026-86950 ↗Trust ok 100

    CVE-2026-86950

    ★ 0 · created 2026-10-05

  4. 34zY/CVE-2026-86950 ↗Trust ok 100

    ★ 0 · created 2026-10-01

  5. java99999/CVE-2026-86950-POC ↗Trust ok 100

    Out-of-bounds Write (CWE-787)

    ★ 0 · created 2026-10-02

Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.

On the wire

1 dispatch
  1. Apple CoreGraphics PoC Emerges as WhatsApp PDF Checks Hint at Possible Delivery PathKEV

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