CWE-40 (Path Traversal: '\\UNC\share\name\' (Windows UNC Share)) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.
The product accepts input that identifies a Windows UNC share ('\\UNC\share\name') that potentially redirects access to an unintended location or arbitrary file.
| Kind | Name | Class | Prevalence | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
| operating_system | — | Windows | Undetermined | — |
| technology | — | Not Technology-Specific | Undetermined | — |
These CVEs are mapped to this weakness in this database and kept for traceability and search.
| CVE | Published | Summary |
|---|---|---|
| CVE-2026-27615 | 2026-02-25 | 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 binary to be execut… |
| CVE-2025-32103 | 2025-04-15 | 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, bypassing SecurityMa… |
| CVE-2023-29446 | 2024-01-10 | 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 NLTMv2 hashes and po… |
| CVE-2021-44548 | 2021-12-23 | 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 Solr host to anothe… |
| Date | Name | Version | Importance | Comment |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Potential_Mitigations, Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Relationships, Taxonomy_Mappings |
| 2009-07-27 | CWE Content Team | 1.5 | — | updated Potential_Mitigations |
| 2010-06-21 | CWE Content Team | 1.9 | — | updated Potential_Mitigations |
| 2011-03-29 | CWE Content Team | 1.12 | — | updated Potential_Mitigations |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated Observed_Examples, References, Relationships |
| 2014-07-30 | CWE Content Team | 2.8 | — | updated Relationships, Taxonomy_Mappings |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Applicable_Platforms |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Potential_Mitigations, Relationships |
| 2020-06-25 | CWE Content Team | 4.1 | — | updated Potential_Mitigations |
| 2021-03-15 | CWE Content Team | 4.4 | — | updated Potential_Mitigations |
| 2023-01-31 | CWE Content Team | 4.10 | — | updated Description |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2025-09-09 | CWE Content Team | 4.18 | — | updated Affected_Resources, Functional_Areas |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Applicable_Platforms, Detection_Factors, Weakness_Ordinalities |