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CWE-40

Path Traversal: '\\UNC\share\name\' (Windows UNC Share)

The product accepts input that identifies a Windows UNC share ('\\UNC\share\name') that potentially redirects access to an unintended location or arbitrary file.

5
Assigned CVEs
541st
Commonality Rank
7.2
Avg CVSS
0.0%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-40 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Dec 23, 2021
4 years ago
Most Recent CVE
Jul 20, 2026
4 days ago

Top CVEs Assigned This CWE

Top CVEs that have been assigned this CWE. A single CVE can have multiple CWE assignments, though many have just one.

5 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2026-25039HIGH
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 wor
Jul 20, 20268.837NONO
CVE-2021-44548CRITICAL
An Improper Input Validation vulnerability in DataImportHandler of Apache Solr allows an attacker to provide a Windows UNC path resulting in an SMB network call being made from the
Dec 23, 20219.834NONO
CVE-2026-27615HIGH
ADB Explorer is a fluent UI for ADB on Windows. In versions prior to Beta 0.9.26022, ADB-Explorer allows the `ManualAdbPath` settings variable, which determines the path of the ADB
Feb 25, 20267.826NONO
CVE-2025-32103MEDIUM
CrushFTP 9.x and 10.x through 10.8.4 and 11.x through 11.3.1 allows directory traversal via the /WebInterface/function/ URI to read files accessible by SMB at UNC share pathnames,
Apr 15, 20255.025NONO
CVE-2023-29446MEDIUM
An improper input validation vulnerability has been discovered that could allow an adversary to inject a UNC path via a malicious project file. This allows an adversary to capture
Jan 10, 20244.716NONO
View all 5 CVEs →

CVE Severity & Scoring

This CWEGlobal (All CVEs)
0.0-0.9
1.0-1.9
2.0-2.9
3.0-3.9
20%
10%
4.0-4.9
20%
19%
5.0-5.9
16%
6.0-6.9
20%
26%
7.0-7.9
20%
11%
8.0-8.9
20%
14%
9.0-10.0
unknown
CVSS Score Range

Exploit Exposure

Exploit activity across CVEs assigned to this CWE, including CVEs that carry other CWE assignments.

CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%

Social Chatter

Social posts that mention CVE IDs assigned to this CWE. This is assigned-CVE activity, not mentions of the CWE label itself.

Media Mentions

Media articles that mention CVE IDs assigned to this CWE. This is assigned-CVE coverage, not mentions of the CWE label itself.

Top Affected Vendors

Top Affected Products