CVE-2023-23590
Published: 15 January 2023
Summary
CVE-2023-23590 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Mercedes-Benz Xentry Retail Data Storage Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 22.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Mercedes-Benz XENTRY Retail Data Storage version 7.8.1 contains a denial-of-service vulnerability that permits an unauthenticated remote attacker to trigger a device restart through a specially crafted API request. The flaw is tracked as CVE-2023-23590 with a CVSS 3.1 base score of 7.5 and is associated with CWE-400, indicating improper resource handling that leads to service interruption without requiring authentication or user interaction.
An attacker positioned on the same network as the affected appliance can send the malicious request directly to the exposed API endpoint, resulting in an immediate restart and temporary loss of availability. No credentials or prior access are needed, and the attack does not impact confidentiality or integrity of stored data.
Public references consist of the vendor product page and a technical disclosure on Medium; neither source details available patches, configuration changes, or other mitigations. The EPSS score for this CVE rose from a low baseline to a peak of 0.1807 on 2025-12-11 before receding to its current value of 0.0099, indicating a period of increased exploitation interest well after initial disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-27690
Vulnerability details
Mercedes-Benz XENTRY Retail Data Storage 7.8.1 allows remote attackers to cause a denial of service (device restart) via an unauthenticated API request. The attacker must be on the same network as the device.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
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.
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.