CVE-2026-43761

MEDIUM

6.5

CVSS Score

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

Updated: September 15, 2026 at 07:40 PM UTC

1 product affected across 1 vendormacOS

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Mounting a malicious disk image may cause unexpected system termination.

Affected

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

macOS · Apple

95%

v < 14.8.8v < 15.7.8v < 26.614.0 ≤ v < 14.8.815.0 ≤ v < 15.7.826.0 ≤ v < 26.6

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 26.6, 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 (3)

Release NotesVendor Advisory

Source: cverecord

https://support.apple.com/en-us/128067

Release NotesVendor Advisory

Source: cverecord

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

Release NotesVendor Advisory

Source: cverecord

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMCISA-ADP

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

Vector?

Quick Info

StatusANALYZED

CWE

CWE-787

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