CVE-2025-43946
Published: 22 April 2025
Summary
CVE-2025-43946 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Tcpwave Ddi. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 19.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TCPWave DDI version 11.34P1C2 contains a remote code execution vulnerability that stems from unrestricted file upload combined with path traversal, tracked as CVE-2025-43946 and assigned CWE-434. The affected component is the DDI platform, which provides DNS, DHCP, and IP address management services. The flaw received a CVSS 3.1 score of 9.8, reflecting network-accessible exploitation with no required credentials or user interaction.
An unauthenticated remote attacker can upload a malicious file and traverse directories to place executable content on the server, resulting in arbitrary code execution with full system impact on confidentiality, integrity, and availability. The attack requires only network connectivity to the vulnerable instance.
Public references consist of a GitHub repository containing CVE details and the vendor product page; neither source supplies mitigation steps, patch availability, or configuration guidance in the provided information.
EPSS for the CVE rose from a low baseline to a peak of 0.0561 on 2026-02-16 before receding to the current value of 0.0139, indicating that exploitation interest emerged after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12209
Vulnerability details
TCPWave DDI 11.34P1C2 allows Remote Code Execution via Unrestricted File Upload (combined with Path Traversal).
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE-2025-43946 allows remote code execution via unrestricted file upload combined with path traversal in TCPWave DDI, a potentially public-facing network management application, enabling exploitation of public-facing applications.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.