The management portal's diagnostic ping tool of Fanvil x7a firmware version 2.6.0.1182 does not handle user supplied input securely.

published 2026-10-07 33 d ago modified 2026-11-04 4 d ago also EUVD-2025-211046

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

The management portal's diagnostic ping tool of Fanvil x7a firmware version 2.6.0.1182 does not handle user supplied input securely. The lack of secure user input handling allows any unauthenticated attacker to inject commands and run code in the underlying Android operating system.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-70521 updated 2026-11-05 cvss 9.8

x7a: Fanvil x7a: Arbitrary code execution via improper input handling in diagnostic ping tool

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 32 d ago (2026-10-07)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

CVE List CVE-2025-70521
NVD CVE-2025-70521

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary