CVE-2025-66252: DB Electronica Telecomunicazioni S.p.A Mozart FM Transmitter · Infinite Loop
Affects DB Electronica Telecomunicazioni S.p.A Mozart FM TransmitterSource CVE Database V5
Not known to be exploited · CVSS 8.4 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter | Affected
| Fixed in– |
AI-suggested
- Implement strict file system permissions to ensure that files targeted by the unlink() operation are deletable by the process, preventing immutable or permission-restricted files from causing the infinite loop.
- Monitor and audit file deletion operations within the transmitter software environment to detect repeated unlink failures indicative of exploitation attempts.
- Restrict administrative access to the transmitter systems to trusted personnel only, employing multi-factor authentication and network segmentation to reduce the risk of privilege escalation.
- Develop and deploy a patch or update from DB Electronica Telecomunicazioni S.p.A. as soon as it becomes available to fix the infinite loop logic in status_contents.php.
- As a temporary workaround, consider modifying the script or environment to include a maximum retry count or timeout for unlink operations to prevent infinite looping.
- Conduct regular backups and have failover mechanisms for broadcasting infrastructure to minimize downtime in case of exploitation.
- Engage with the vendor for detailed guidance and support on mitigating this vulnerability in operational environments.
Description
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 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.