CVE-2026-86950 (GCVE-0-2026-86950)

Vulnerability from cvelistv5 – Published: 2026-09-28 19:13 – Updated: 2026-10-26 20:35
VLAI CISA CIRCL Previdian
Summary
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, 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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 03:55 UTC
CWE
  • 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.
  • CWE-787 - Out-of-bounds Write
Assigner
apple CNA under the mitre root
CNA scorecard E 37/100 over 990 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apple iOS and iPadOS Affected: 0 , < 18.7.11 (custom)
Affected: 0 , < 26.7.1 (custom)
guessed Create a notification for this product.
Apple macOS Affected: 0 , < 15.8.1 (custom)
Affected: 0 , < 26.7.1 (custom)
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: bcb5d5a3-3af8-4ef2-97ae-4e43dc066d14

Vulnerability ID: CVE-2026-86950

Status: Confirmed

Status Updated: 2026-09-29 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-29
Asserted: 2026-09-29
Scope
Notes: Apple Multiple Products Out-of-Bounds Write Vulnerability | Affected: Apple / Multiple Products | 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. | Due date: 2026-10-02 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2026-10-02
Date Added 2026-09-29
Vendorproject Apple
Vulnerabilityname Apple Multiple Products Out-of-Bounds Write Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-09-29 15:00 UTC | Updated: 2026-09-29 15:00 UTC
CIRCL
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 918a33c0-0ea4-4b6f-9680-64a08e83ee27

Vulnerability ID: CVE-2026-86950

Status: Confirmed

Status Updated: 2026-10-12 11:54 UTC

Exploited: Yes

Characteristics
Remote Code Execution: Yes
Authentication Required: No
Local Access Required: Remote
Timestamps
First Seen: 2026-10-12
Asserted: 2026-10-12
Last Seen: 2026-10-12
Created: 2026-10-12 11:55 UTC | Updated: 2026-10-12 11:55 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 40f14d7c-bfd6-4b8b-9521-0da985c5b884

Vulnerability ID: CVE-2026-86950

Status: Confirmed

Status Updated: 2026-09-28 19:30 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-28
Asserted: 2026-09-28
Scope
Notes: 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... | Affected: Apple / iOS and iPadOS, macOS | CVSS: 8.8 (HIGH) | EPSS: 0.00812 | Used in malware: unknown | Listed 19 hours ahead of CISA KEV | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title 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...
Cve Id CVE-2026-86950
Vendor Apple
Ghsa Id GHSA-3CF3-H799-FJVQ
Product iOS and iPadOS, macOS
Added Date 2026-09-28T19:30:46.754Z
Cvss Score 8.8
Epss Score 0.00812
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.55295
Used In Malware unknown
Vulnerability Id CVE-2026-86950
Ahead Of Cisa Kev 
{
  "count": 19,
  "unit": "hour"
}
Not Yet In Cisa Kev False
References
Created: 2026-09-29 20:00 UTC | Updated: 2026-09-29 20:00 UTC
Show details on NVD website
To clipboard 

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                  "description": "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.",
                  "lang": "en"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-28T19:13:52.603Z",
            "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
            "shortName": "apple"
          },
          "references": [
            {
              "url": "https://support.apple.com/en-us/149226"
            },
            {
              "url": "https://support.apple.com/en-us/149228"
            },
            {
              "url": "https://support.apple.com/en-us/149229"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "assignerShortName": "apple",
        "cveId": "CVE-2026-86950",
        "datePublished": "2026-09-28T19:13:52.603Z",
        "dateReserved": "2026-09-08T16:43:41.881Z",
        "dateUpdated": "2026-10-01T17:15:57.969Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.