Overview
What is CVE-2026-86981?
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7.
An app may be able to cause unexpected system termination.
Source: NVD
CVE intelligence
CVE-2026-86981
Vulnerability intelligence
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2026-86981 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.1%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships