Is CVE-2025-66257 in the CISA KEV catalog?

No. CVE-2025-66257 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-66257?

CVE-2025-66257 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2025-66257?

CVE-2025-66257 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-66257

CRITICAL

9.1

CVSS v3

NVD

Description

Unauthenticated Arbitrary File Deletion (patch_contents.php) 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 The deletepatch parameter allows unauthenticated deletion of arbitrary files. The `deletepatch` parameter in `patch_contents.php` allows unauthenticated deletion of arbitrary files in `/var/www/patch/` directory without sanitization or access control checks.

CWE-73External Control of File Name or Path

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploit Intelligence

0.32%probability of exploitation in 30 days

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

https://www.abdulmhsblog.com/posts/webfmvulns/

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-03.