CWE-347 is Improper Verification of Cryptographic Signature. The flaw arises when the product does not verify, or incorrectly verifies, the cryptographic signature for data. The database currently holds 233 vulnerabilities mapped to CWE-347 and 2 of them are in the CISA Known Exploited Vulnerabilities catalog.
The analysis could not be completed. Please try again.
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
| Impact | Scope | Explanation |
|---|---|---|
| Gain Privileges or Assume Identity, Modify Application Data, Execute Unauthorized Code or Commands | Access Control, Integrity, Confidentiality | An attacker could gain access to sensitive data and possibly execute unauthorized code. |
| Method | Approach | Effectiveness |
|---|---|---|
| Automated Static Analysis | Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) | High |
Below are representative vulnerabilities related to this CWE, prioritized by severity.
CWE™ Program, operated by The MITRE Corporation. Copyright © 2006–2026, The MITRE Corporation. The MITRE Corporation hereby grants you a non-exclusive, royalty-free license to use CWE for research, development, and commercial purposes. CWE Terms of Use.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
Review CyStack's security rating and practical recommendations for websites and edge assets.
Explore cybersecurity research from our team of security specialists.
Browse practical cybersecurity knowledge across CyStack's articles and guides.
en
