Cyber Resilience

CVE-2025-66252

DoS in Dbbroadcast Mozart Next 100 Firmware

Public PoCDoS
Published
26 November 2025
Modified
03 December 2025
CVSS Score v4 8.4
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0036 28th percentile
Risk Priority 30 floored blend · peak EPSS

Summary

CVE-2025-66252 is a high-severity Infinite Loop (CWE-835) vulnerability in Dbbroadcast Mozart Next 100 Firmware. Its CVSS base score is 8.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 28th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-2 (Flaw Remediation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Infinite Loop Denial of Service via Failed File Deletion in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter versions 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000 allows an attacker to perform Infinite loop when unlink() fails in…

more

status_contents.php causing DoS. Due to the fact that the unlink operation is done in a while loop; if an immutable file is specified or otherwise a file in which the process has no permissions to delete; it would repeatedly attempt to do in a loop.

CWE(s)
CWE-835

Related Threats

MITRE ATT&CK Enterprise Techniques

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
attack.mitre.org →
T1499.003 Application Exhaustion Flood Impact
Adversaries may target resource intensive features of applications to cause a denial of service (DoS), denying availability to those applications.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-63228Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66257Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66262Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66260Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66254Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66255Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66253Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66250Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-63229Same product: Dbbroadcast Mozart Dds Next 100
CVE-2025-66263Same product: Dbbroadcast Mozart Dds Next 100

Affected Assets

dbbroadcast
mozart next 100 firmware
all versions
dbbroadcast
mozart next 1000 firmware
all versions
dbbroadcast
mozart next 2000 firmware
all versions
dbbroadcast
mozart next 30 firmware
all versions
dbbroadcast
mozart next 300 firmware
all versions
dbbroadcast
mozart next 3000 firmware
all versions
dbbroadcast
mozart next 3500 firmware
all versions
dbbroadcast
mozart next 50 firmware
all versions
dbbroadcast
mozart next 500 firmware
all versions
dbbroadcast
mozart next 6000 firmware
all versions
+12 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover unreachable loop exit conditions through static analysis, fuzzing, or execution tracing.

SI-2 Flaw Remediation good match

Flaw remediation processes identify and correct infinite-loop defects reported from testing or operations.

SA-15 Development Process, Standards, and Tools partial match

Requiring documented development processes and secure coding standards reduces introduction of loops whose termination conditions are unreachable.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices (reviews, testing, static analysis) directly prevent introduction of infinite-loop defects.

ID.RA-01 partial match
prevents

Static analysis and vuln scanning during asset assessment can detect unreachable loop exits.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can uncover infinite-loop conditions before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates practices that can detect and prevent infinite-loop defects.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify loop-termination rules, indirectly reducing the weakness.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly address loop termination and prevent infinite loops.

A.8.27 Secure system architecture and engineering principles none match
none

Secure architecture principles encourage designs that avoid unreachable exit conditions.

A.8.32 Change management none match
none

Change management can require review of loop logic when code is modified.

References