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Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2026-86950
Apple Multiple Products Out-of-Bounds Write Vulnerability - [Actively Exploited]
Overview
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.

Details
INFO

Published Date :

Sept. 28, 2026, 8:17 p.m.

Last Modified :

Oct. 1, 2026, 6:17 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.

Required Action :

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Known Ransomware Campaign Use:

Unknown

Notes :

https://support.apple.com/en-us/149226 ; https://support.apple.com/en-us/149228 ; https://support.apple.com/en-us/149229 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-86950

Impact
Affected Products

The following products are affected by CVE-2026-86950 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple iphone_os
3 Apple ipados
4 Apple macos
: Total Affected Vendor : 1 | Products : 4
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Apply updates to fix out-of-bounds write vulnerability and prevent code execution.
  • Update iOS to version 27 or later.
  • Update macOS to the latest version.
  • Apply security updates for iPadOS.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-86950.

URL Resource
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
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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-86950 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-86950 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-86950 vulnerability anywhere in the article.

  • TheCyberThrone
CVE-2026-76504: Cisco SD-WAN Manager Zero-Day Exploited in Wild

October 1, 2026Executive SummaryCisco Catalyst SD-WAN Manager is dealing with a serious zero-day that is already being exploited in the wild.Hacking & CrackingTracked as CVE-2026-76504, the flaw allow ... Read more

Published Date: Oct 01, 2026 (2 weeks, 3 days ago)
  • The Hacker News
Apple CoreGraphics PoC Emerges as WhatsApp PDF Checks Hint at Possible Delivery Path

Security researchers have published the first public proof-of-concept for CVE-2026-86950, an Apple CoreGraphics flaw Apple says may have been used in attacks against specific targeted individuals. The ... Read more

Published Date: Oct 01, 2026 (2 weeks, 4 days ago)
  • TheCyberThrone
How the Citrix NetScaler Zero-Days Are Actually Being Exploited

The story around the Citrix NetScaler zero-days has become much clearer over the last few days.Threat Intelligence PlatformInitially, we knew that CVE-2026-88771 and CVE-2026-88772 were being exploite ... Read more

Published Date: Sep 30, 2026 (2 weeks, 4 days ago)
  • Dark Reading
Apple Zero-Day Vulnerability Weaponized in Targeted Attacks

4 Min ReadSource: tetrisfun via ShutterstockApple released new versions of iOS and macOS to address a zero-day vulnerability that a threat actor is actively exploiting in targeted attacks.The out-of-b ... Read more

Published Date: Sep 29, 2026 (2 weeks, 5 days ago)
  • TheCyberThrone
Apple CoreGraphics Zero-Day: CVE-2026-86950

Apple has released  security updates to address a newly disclosed CoreGraphics vulnerability, CVE-2026-86950.The vulnerability is an out-of-bounds write that can potentially lead to arbitrary code exe ... Read more

Published Date: Sep 29, 2026 (2 weeks, 5 days ago)
  • security.nl
Apple dicht beveiligingslek ingezet bij aanvallen tegen iPhone-gebruikers

Apple heeft beveiligingsupdates uitgebracht voor een kwetsbaarheid die is ingezet bij aanvallen tegen iPhone-gebruikers. Via het 'out-of-bounds write' beveiligingslek (CVE-2026-86950) kan een aanvalle ... Read more

Published Date: Sep 29, 2026 (2 weeks, 5 days ago)
  • The Hacker News
Apple Patches CoreGraphics Flaw Possibly Exploited in Targeted Attacks

Apple has released security updates to address a vulnerability in older versions of iOS, iPadOS, and macOS that it said may have been exploited in targeted attacks. The vulnerability, tracked as CVE-2 ... Read more

Published Date: Sep 28, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-86950 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 08, 2026

    Action Type Old Value New Value
    Changed Due Date 2026-09-29 2026-09-29
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 01, 2026

    Action Type Old Value New Value
    Removed SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T00:00:00+00:00'}
    Added SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-30T03:55:58.823862Z'}
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 30, 2026

    Action Type Old Value New Value
    Removed SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-29T14:29:32.485674Z'}
    Added SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T00:00:00+00:00'}
  • Initial Analysis by [email protected]

    Sep. 29, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 26.7.1 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 15.8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 26.7.1 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 26.0 up to (excluding) 26.7.1
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/149226 Types: Release Notes, Vendor Advisory
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/149228 Types: Release Notes, Vendor Advisory
    Added Reference Type CVE: http://seclists.org/fulldisclosure/2026/Sep/89 Types: Mailing List, Third Party Advisory
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/149229 Types: Release Notes, Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950 Types: US Government Resource
    Added Reference Type CVE: http://seclists.org/fulldisclosure/2026/Sep/90 Types: Mailing List, Third Party Advisory
    Added Reference Type CVE: http://seclists.org/fulldisclosure/2026/Sep/91 Types: Mailing List, Third Party Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Sep. 29, 2026

    Action Type Old Value New Value
    Added Date Added 2026-09-29
    Added Due Date 2026-09-29
    Added Required Action 2026-09-29
    Added Vulnerability Name 2026-09-29
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 29, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-86950
    Removed SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T00:00:00+00:00'}
    Added SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-29T14:29:32.485674Z'}
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Sep. 29, 2026

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2026/Sep/89
    Added Reference http://seclists.org/fulldisclosure/2026/Sep/90
    Added Reference http://seclists.org/fulldisclosure/2026/Sep/91
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 29, 2026

    Action Type Old Value New Value
    Removed SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T19:42:49.828459Z'}
    Added SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T00:00:00+00:00'}
  • New CVE Received by [email protected]

    Sep. 28, 2026

    Action Type Old Value New Value
    Added 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.
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/86xxx/CVE-2026-86950.json">CVE-2026-86950</a>
    Added Reference https://support.apple.com/en-us/149226
    Added Reference https://support.apple.com/en-us/149228
    Added Reference https://support.apple.com/en-us/149229
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 28, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added SSVC {'id': 'CVE-2026-86950', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-28T19:42:49.828459Z'}
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact