What is the CVSS score of CVE-2026-84553?

CVE-2026-84553 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.5%.

Is there a patch available for CVE-2026-84553?

Yes, a patch is available for CVE-2026-84553. Update the affected software to the latest version immediately.

Apple CVE-2026-84553

EUVD-2026-77922 HIGH

Uncontrolled Resource Consumption (CWE-400)

2026-09-14 apple

GHSA-qmfx-q2gx-cwf8

Denial Of Service Apple

7.5

CVSS 3.1 · Vendor: apple

Severity by source

Vendor (apple) PRIMARY

7.5 HIGH

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

Primary rating from Vendor (apple) · only source for this CVE.

CVSS VectorVendor: apple

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Sep 15, 2026 - 10:36 vuln.today

CVSS changed

Sep 14, 2026 - 23:22 NVD

7.5 (HIGH)

Patch available

Sep 14, 2026 - 22:19 EUVD

CVE Published

Sep 14, 2026 - 20:50 cve.org

HIGH 7.5

CVE Published

Sep 14, 2026 - 20:50 cve.org

UNKNOWN (no severity yet)

DescriptionCVE.org

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause a denial-of-service.

AnalysisAI

Resource exhaustion in Apple macOS allows a remote, unauthenticated attacker to deny service to legitimate users by feeding input that the operating system fails to bound correctly. Apple fixed the flaw with improved input validation in macOS Tahoe 26.7, macOS Sequoia 15.8, and macOS Golden Gate 27. …