CVE-2026-84505
CVSS v3
7.8
HIGH
EPSS Score
0.2 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain root privileges.
Technical details
- Published
- 2026-09-14
- Last Modified
- 2026-09-16
Frequently asked questions
What is CVE-2026-84505?
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain root privileges.
Is CVE-2026-84505 actively exploited?
Active exploitation of CVE-2026-84505 has not been confirmed. Its EPSS score was 0.2% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-84505?
CVE-2026-84505 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2026-84505 affecting your environment?
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