CVE-2026-39870

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Summary

CVECVE-2026-39870
StatePUBLISHED
Assignerapple
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-11 21:18:59 UTC
Updated2026-05-12 19:16:32 UTC
DescriptionThe issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.000170000 probability, percentile 0.041320000 (date 2026-05-12)

Problem Types: CWE-119 | Processing a maliciously crafted image may corrupt process memory | CWE-119 CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apple MacOS affected 14.8.7 custom Not specified
CNA Apple MacOS affected 15.7.7 custom Not specified
CNA Apple MacOS affected 26.5 custom Not specified

References

ReferenceSourceLinkTags
support.apple.com/en-us/127115 [email protected] support.apple.com
support.apple.com/en-us/127117 [email protected] support.apple.com
support.apple.com/en-us/127116 [email protected] support.apple.com
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