CVE-2025-56424
Published: 08 January 2026
Summary
CVE-2025-56424 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Insiders-Technologies E-Invoice Pro. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 40.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
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.
Limiting concurrent sessions directly prevents uncontrolled resource consumption by capping the number of active sessions per user or account.
Analysis identifies uncontrolled resource consumption indicative of denial-of-service or abuse attempts.
Contingency plan testing includes resource exhaustion scenarios to verify recovery, making it harder for attackers to sustain exploits that cause uncontrolled consumption.
Updated contingency plans include current procedures to detect, contain, and recover from resource exhaustion, limiting an attacker's ability to sustain impact from uncontrolled consumption.
Alternate site allows resumption of operations if resource exhaustion at the primary site is exploited to cause unavailability.
Alternate telecommunications services enable resumption of essential functions when primary services become unavailable due to uncontrolled resource consumption.
The team can analyze and respond to resource exhaustion incidents, reducing the impact of attacks that exploit uncontrolled consumption weaknesses.
Timely maintenance support and spare parts enable rapid recovery from failures induced by uncontrolled resource consumption, shortening the impact window of denial-of-service attacks.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability is a remotely exploitable DoS in a public-facing e-invoice application via crafted input (CWE-400), directly enabling T1190 (Exploit Public-Facing Application) and T1499.004 (Endpoint DoS via Application Exploitation).
NVD Description
An issue in Insiders Technologies GmbH e-invoice pro before release 1 Service Pack 2 allows a remote attacker to cause a denial of service via a crafted script
Deeper analysisAI
CVE-2025-56424 is a denial-of-service vulnerability in Insiders Technologies GmbH e-invoice pro versions prior to release 1 Service Pack 2. The flaw, tied to CWE-400 (Uncontrolled Resource Consumption), enables a remote attacker to disrupt service availability by sending a crafted script. It carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), reflecting its high severity from network-based access with low attack complexity and no authentication or user interaction needed.
A remote, unauthenticated attacker can exploit this vulnerability by transmitting a specially crafted script to the affected e-invoice pro instance. Exploitation leads to a high-impact denial of service, potentially causing the service to become unavailable without affecting confidentiality or integrity.
Advisories recommend upgrading to e-invoice pro release 1 Service Pack 2 or later to mitigate the issue. Further details appear in the vendor page at https://insiders-technologies.com/en/e-invoice/ and the analysis at https://mind-bytes.de/xml-external-entity-xxe-injection-in-e-invoice-pro-cve-2025-56424/.
Details
- CWE(s)