What is the CVSS score of CVE-2026-27115?

CVE-2026-27115 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Windows are affected by CVE-2026-27115?

ADB Explorer versions 0.9.26020 and below contain a critical flaw allowing unauthorized deletion of arbitrary files and folders on Windows systems.

How to fix or mitigate CVE-2026-27115?

Within 24 hours: Inventory all systems running ADB Explorer 0.9.26020 or earlier; disable or uninstall the application on non-critical systems pending remediation. Within 7 days: Establish a mandatory upgrade timeline to versions beyond 0.9.26020 once available; implement access controls restricting ADB Explorer usage to authorized personnel only. Within 30 days: Complete upgrade of all affected systems; validate patch deployment; review logs for evidence of exploitation and conduct data integrity assessments on critical directories.

Windows CVE-2026-27115

HIGH

Path Traversal (CWE-22)

2026-02-20 security-advisories@github.com

Windows Path Traversal Microsoft Adb Explorer

7.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.1 HIGH

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

CVE Published

Feb 20, 2026 - 18:25 nvd

HIGH 7.1

DescriptionGitHub Advisory

ADB Explorer is a fluent UI for ADB on Windows. Versions 0.9.26020 and below have an unvalidated command-line argument that allows any user to trigger recursive deletion of arbitrary directories on the Windows filesystem. ADB Explorer accepts an optional path argument to set a custom data directory, but only check whether the path exists. The ClearDrag() method calls Directory.Delete(dir, true) on every subdirectory of that path at both application startup and exit. An attacker can craft a malicious shortcut (.lnk) or batch script that launches ADB Explorer with a critical directory (e.g. C:\Users\%USERNAME%\Documents) as the argument, causing permanent recursive deletion of all its subdirectories. Any user who launches ADB Explorer via a crafted shortcut, batch file, or script loses the contents of the targeted directory permanently (deletion bypasses the Recycle Bin). This issue has been fixed in version 0.9.26021.

AnalysisAI

ADB Explorer through version 0.9.26020 fails to validate user-supplied directory paths, enabling local attackers to trigger recursive deletion of arbitrary filesystem directories including critical system and user folders. An attacker can exploit this by crafting a malicious shortcut or script that launches the application with a sensitive path argument, causing permanent data loss when the application processes the ClearDrag() function at startup or exit. Any user tricked into launching ADB Explorer via a weaponized shortcut or batch file faces complete loss of targeted directories such as Documents or user profile folders.

Technical ContextAI

Classified as CWE-22 (Path Traversal). ADB Explorer is a fluent UI for ADB on Windows. Versions 0.9.26020 and below have an unvalidated command-line argument that allows any user to trigger recursive deletion of arbitrary directories on the Windows filesystem. ADB Explorer accepts an optional path argument to set a custom data directory, but only check whether the path exists. The ClearDrag() method calls Directory.Delete(dir, true) on every subdirectory of that path at both application startup and exit. An attacker can craft a malic