What is the CVSS score of CVE-2026-28827?

CVE-2026-28827 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of macOS are affected by CVE-2026-28827?

A critical sandbox escape vulnerability in macOS (Sequoia 15.7.5, Sonoma 14.8.5, Tahoe 26.4) allows locally-installed malicious applications to break out of security restrictions and gain full system…. A patch is available.

macOS CVE-2026-28827

EUVD-2026-15097 CRITICAL

Path Traversal (CWE-22)

2026-03-25 apple

Path Traversal Apple macOS

9.3

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 05:49 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

15.7.5,26.4,14.8.5

EUVD ID Assigned

Mar 25, 2026 - 01:00 euvd

EUVD-2026-15097

Analysis Generated

Mar 25, 2026 - 01:00 vuln.today

CVE Published

Mar 25, 2026 - 00:31 nvd

CRITICAL 9.3

DescriptionNVD

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.

AnalysisAI

Improper path validation in macOS (Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4) allows sandboxed applications to escape their sandbox restrictions through directory path traversal. A local attacker with the ability to run malicious apps can exploit this weakness to execute code outside sandbox boundaries with full system privileges. …

RemediationAI

24 hours: Audit and document all macOS devices running Sequoia 15.7.5, Sonoma 14.8.5, or Tahoe 26.4 in your environment; immediately restrict user ability to install third-party applications until patched. 7 days: Monitor CISA KEV catalog and Apple security advisories for patch release confirmation; prepare update deployment plan. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-28827 vulnerability details – vuln.today

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macOS CVE-2026-28827

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

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External POC / Exploit Code