CVE-2026-43728 — HIGH (7.5)

Q: What is CVE-2026-43728?

CVE-2026-43728 is a vulnerability with a CVSS score of 7.5 (HIGH). This issue was addressed through improved state management. This issue is fixed in macOS Tahoe 26.6. An attacker may be able to modify the state of the Keychain.

Q: How severe is CVE-2026-43728?

CVE-2026-43728 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-43728?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.

Vulnerability Description

This issue was addressed through improved state management. This issue is fixed in macOS Tahoe 26.6. An attacker may be able to modify the state of the Keychain.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Apple	Macos	>= 26.0, < 26.6

Related Weaknesses (CWE)

CWE-362

References

https://support.apple.com/en-us/128067Release NotesVendor Advisory

FAQ

What is CVE-2026-43728?

CVE-2026-43728 is a vulnerability with a CVSS score of 7.5 (HIGH). This issue was addressed through improved state management. This issue is fixed in macOS Tahoe 26.6. An attacker may be able to modify the state of the Keychain.

How severe is CVE-2026-43728?

CVE-2026-43728 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-43728?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.