CVE-2026-84489

MEDIUM

5.5

CVSS Score

Published: September 14, 2026 at 08:51 PM UTC

Updated: October 26, 2026 at 08:42 PM UTC

3 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An app may be able to cause a denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 18.7.10

Affected range stops below 18.7.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 27, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 18.7.10

Affected range stops below 18.7.10, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

14.0 ≤ v < 14.8.815.0 ≤ v < 15.7.8

Affected range stops below 14.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.7.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 27, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/128071

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/128072

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/148287

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/149034

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/149035

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM134c704f-9b21-4f2e-91b3-4a467353bcc0

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-120

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