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CVE-2026-86963

A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able

Apple iOS and iPadOSOperating systems
Open in ThreatlineRecord JSON
CVSS
5.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in26.7Also 27CVE List
Published20 Oct 2026Updated 20 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able to cause a denial-of-service.

Text from CVE List

Affected versions 2

  • iOS and iPadOSaffected: all versions before 26.7CVE List
  • iOS and iPadOSaffected: all versions before 27CVE List

References 2