Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-86950

CVE-2026-86950HIGH

Apple iOS and iPadOS — An out-of-bounds write issue was addressed with improved bounds checking.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  H  H  H    8.8   .0124   68.1   YES

AFFECTED
  Product         Versions     Fixed
  iOS and iPadOS  unspecified  —
  macOS           unspecified  —

TIMELINE
  Sep 8   Reserved by apple
  Sep 28  Published (CNA: apple)
  Sep 29  ADDED TO KEV — CVE-2026-86950 (Apple iOS and iPadOS). Remediation due October 2, 2026.

CWE-787 · CNA: apple · CVSS v3.1 · 7 references · NVD status: Analyzed · KEV due October 2, 2026

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 8, 2026	Reserved	Reserved by apple
September 28, 2026	Published	Published (CNA: apple)
September 29, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-86950 (Apple iOS and iPadOS). Remediation due October 2, 2026.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Apple	iOS and iPadOS	—	—	—
Apple	macOS	—	—	—

Weaknesses

CWE-787

References (7)

http://seclists.org/fulldisclosure/2026/Sep/89 [Mailing List, Third Party Advisory]
http://seclists.org/fulldisclosure/2026/Sep/90 [Mailing List, Third Party Advisory]
http://seclists.org/fulldisclosure/2026/Sep/91 [Mailing List, Third Party Advisory]
https://support.apple.com/en-us/149226 [Release Notes, Vendor Advisory]
https://support.apple.com/en-us/149228 [Release Notes, Vendor Advisory]
https://support.apple.com/en-us/149229 [Release Notes, Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 [US Government Resource]

Authoritative record: CVE-2026-86950 at cve.org

Vendors: apple

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-86950 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.