CVE-2026-39870Network attack vector

Process-memory corruption via crafted image processing

Published May 11, 2026 · Updated May 11, 2026

Memory corruption in SceneKit in Apple macOS allows attackers to corrupt process memory by processing a maliciously crafted image. Apple identifies only improved memory handling and has not disclosed the specific SceneKit operation that mishandles the image data. Reaching the flaw requires SceneKit to process attacker-controlled image data; public material does not establish code execution or corruption beyond the affected process.

CVSS severity7.5
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in SceneKit in Apple macOS allows attackers to corrupt process memory by processing a maliciously crafted image. Apple identifies only improved memory handling and has not disclosed the specific SceneKit operation that mishandles the image data. Reaching the flaw requires SceneKit to process attacker-controlled image data; public material does not establish code execution or corruption beyond the affected process.

The record

CVE
CVE-2026-39870
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-119
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <14.8.7
  2. Affected versionversion=0 <15.7.7
  3. Affected versionversion=0 <26.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <14.8.7; version=0 <15.7.7; version=0 <26.5

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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