AppleCVE-2026-43806

Apple macOS: denial of service

Medium5.5CVE-2026-43806 · Published Jul 27, 2026 · updated Jul 30, 2026

A denial of service issue was addressed by removing the vulnerable code. This issue is fixed in macOS Tahoe 26.6. A local attacker may be able to cause a denial of service.

Apple advisory

Affected versions

Package	Affected	Fixed in
macOS Product	< 26.6	26.6

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-400

More Apple advisories

All Apple

Date	Advisory	Severity	Fixed in
Jul 27	Apple iOS and iPadOS: out-of-bounds write Critical9.8Jul 27 CVE-2026-6476918.7.10+3 more	Critical9.8	18.7.10+3 more
Jul 27	Apple iOS and iPadOS: out-of-bounds write Critical9.8Jul 27 CVE-2026-6477018.7.10+3 more	Critical9.8	18.7.10+3 more
Jul 27	Apple iOS and iPadOS: buffer overflow Critical9.8Jul 27 CVE-2026-6477118.7.10+2 more	Critical9.8	18.7.10+2 more
Jul 27	Apple iOS and iPadOS: out-of-bounds write Critical9.8Jul 27 CVE-2026-6477218.7.10+2 more	Critical9.8	18.7.10+2 more
Jul 27	Apple iOS and iPadOS: integer overflow Critical9.8Jul 27 CVE-2026-6477418.7.10+3 more	Critical9.8	18.7.10+3 more
Jul 27	A memory initialization issue was addressed with improved memory handling Critical9.8Jul 27 CVE-2026-6477526.6+2 more	Critical9.8	26.6+2 more

Affected versions

More Apple advisories

Critical advisories by email