NVD / CVE Program· CNA Gridware

CVE-2025-66262: Arbitrary File Overwrite via Tar Extraction Path Traversal

Noroxi assessment

Priority: Monitor (action score 37/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 74.5% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Arbitrary File Overwrite via Tar Extraction Path Traversal 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 Tar extraction with -C / allow arbitrary file overwrite via crafted archive. The `restore_mozzi_memories.sh` script extracts user-controlled tar archives with `-C /` flag, depositing contents to the filesystem root without path validation. When combined with the unauthenticated file upload vulnerabilities (CVE-01, CVE-06, CVE-07), attackers can craft malicious .tgz archives containing path-traversed filenames (e.g., `etc/shadow`, `var/www/index.php`) to overwrite critical system files in writable directories, achieving full system compromise.

CriticalCVSS 9.3 · v4.0—No exploit No fix recorded

Published: Nov 26, 2025
Updated: Oct 18, 2026
EPSS: 1.5% · 74th percentile
CWE: CWE-22

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 37 / 40 · 9.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.5%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Gridware: 9.3; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/AU:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
dbbroadcast	mozart next 100 firmware	cpe:2.3:o:dbbroadcast:mozart_next_100_firmware
dbbroadcast	mozart next 100	cpe:2.3:h:dbbroadcast:mozart_next_100
dbbroadcast	mozart next 1000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_1000_firmware
dbbroadcast	mozart next 1000	cpe:2.3:h:dbbroadcast:mozart_next_1000
dbbroadcast	mozart next 2000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_2000_firmware
dbbroadcast	mozart next 2000	cpe:2.3:h:dbbroadcast:mozart_next_2000
dbbroadcast	mozart next 30 firmware	cpe:2.3:o:dbbroadcast:mozart_next_30_firmware
dbbroadcast	mozart next 30	cpe:2.3:h:dbbroadcast:mozart_next_30
dbbroadcast	mozart next 300 firmware	cpe:2.3:o:dbbroadcast:mozart_next_300_firmware
dbbroadcast	mozart next 300	cpe:2.3:h:dbbroadcast:mozart_next_300
dbbroadcast	mozart next 3000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_3000_firmware
dbbroadcast	mozart next 3000	cpe:2.3:h:dbbroadcast:mozart_next_3000

and 32 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

dbbroadcast mozart dds next 100 firmwareall versions
dbbroadcast mozart dds next 1000 firmwareall versions
dbbroadcast mozart dds next 2000 firmwareall versions
dbbroadcast mozart dds next 30 firmwareall versions
dbbroadcast mozart dds next 300 firmwareall versions
dbbroadcast mozart dds next 3000 firmwareall versions
dbbroadcast mozart dds next 3500 firmwareall versions
dbbroadcast mozart dds next 50 firmwareall versions
dbbroadcast mozart dds next 500 firmwareall versions
dbbroadcast mozart dds next 6000 firmwareall versions
dbbroadcast mozart dds next 7000 firmwareall versions
dbbroadcast mozart next 100 firmwareall versions
dbbroadcast mozart next 1000 firmwareall versions
dbbroadcast mozart next 2000 firmwareall versions
dbbroadcast mozart next 30 firmwareall versions
dbbroadcast mozart next 300 firmwareall versions
dbbroadcast mozart next 3000 firmwareall versions
dbbroadcast mozart next 3500 firmwareall versions
dbbroadcast mozart next 50 firmwareall versions
dbbroadcast mozart next 500 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Gridware). Independent of NVD's CPE analysis and usually ahead of it.

DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter
- 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000affected

Same product

dbbroadcast: all records

Other highest-scoring records for the same primary product.

CVE-2025-66261Unauthenticated OS Command Injection (restore_settings.php)
40Plan
CVE-2025-66253Unauthenticated OS Command Injection (start_upgrade.php)
40Plan
CVE-2025-66256Unauthenticated Arbitrary File Upload (patch_contents.php)
39Monitor

Published before and after this one in the same product

← EarlierCVE-2025-66257Nov 26, 2025 · Unauthenticated Arbitrary File Deletion (patch_contents.php)
36Monitor
← EarlierCVE-2025-66259Nov 26, 2025 · Authenticated Root Remote Code Execution through improper filtering of HTTP post request parameters
37Monitor
← EarlierCVE-2025-66260Nov 26, 2025 · PostgreSQL SQL Injection (status_sql.php)
28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Abdul Mhannifinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-662510 days apartUnauthenticated Path Traversal with Arbitrary File Deletion
30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/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:N/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

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