Cyber Resilience

CVE-2026-8148

High

Published: 08 May 2026

Published
08 May 2026
Modified
11 May 2026
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0001 3.5th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-8148 is a high-severity Incorrect Privilege Assignment (CWE-266) vulnerability in Navercorp Mybox. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 3.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

NAVER MYBOX Explorer for Windows before 3.0.11.160 allows a local attacker to escalate privileges to NT AUTHORITY\SYSTEM via registry manipulation due to improper privilege checks.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
Why these techniques?

Local privilege escalation to SYSTEM via registry manipulation due to improper privilege checks directly matches Exploitation for Privilege Escalation.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-42368Shared CWE-266
CVE-2025-69293Shared CWE-266
CVE-2026-42680Shared CWE-266
CVE-2025-69378Shared CWE-266
CVE-2026-27102Shared CWE-266
CVE-2025-22736Shared CWE-266
CVE-2024-40591Shared CWE-266
CVE-2026-48879Shared CWE-266
CVE-2025-33179Shared CWE-266
CVE-2026-25414Shared CWE-266

Affected Assets

navercorp
mybox
≤ 3.0.11.160

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-266

Designation of a manager and policy dissemination ensures privileges are assigned according to defined roles.

addresses: CWE-266

Regular reviews catch incorrect privilege assignments to users, roles, or processes.

addresses: CWE-266

Explicitly specifying privileges and group/role memberships for accounts reduces the risk of incorrect privilege assignments.

addresses: CWE-266

The control requires explicit definition of separated access authorizations, making incorrect privilege assignments that bundle conflicting duties harder to implement.

addresses: CWE-266

Ensures privileges are assigned only as necessary rather than incorrectly over-granted.

References