SEPTEMBER 7, 2026
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Case File

CVE-2026-25039

HIGH · CVSS 8.8 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

The vulnerability affects the Parsec application on Windows, where it fails to properly sanitize workspace names, allowing the inclusion of UNC paths. This can lead to application unresponsiveness or unauthorized access to NTLM hashes if the UNC path is valid, posing a significant security risk. Organizations using Parsec for file sharing should prioritize addressing this vulnerability to protect against potential credential theft and system exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-25039
Severity
HIGH
CVSS
8.8
EPSS
0.34%
Windows

Original NVD Description

Parsec is a cloud-based application for simple and cryptographically secure file sharing. The application does not sanitize the workspace name, creating a vulnerability if that workspace name is a UNC path. When creating mountpoint in the windows filesystem to mount the workspace of an organization, the application does not sanitize the workspace name. The cause issue if the workspace name evaluate to a UNC path since it's allowed for the name to containt `\` char. If the UNC path is invalid (or the targeted resource is not available) the application become unresponsive otherwise the system will interact with the mounted UNC path allowing the attacker to retrieve to [`NTLM`] hash.