Is CVE-2025-70516 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-70516 being exploited in the wild.

How severe is CVE-2025-70516?

Critical severity, with a CVSS score of 9.1, published 7 October 2026.

Is there a fix for CVE-2025-70516?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2025-70516 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2025-70516?

Check whether you run Fanvil X7a at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-70516: Fanvil x7a websocket authentication bypass

CVE-2025-70516 · Severity: critical · CVSS 9.1 · Published 2026-10-07

Fanvil x7a IP phones contain a flaw in their websocket authentication handler that allows remote attackers to access sensitive device information without credentials. An unauthenticated attacker can view operational logs, retrieve diagnostic data, and perform unauthorized requests, potentially exposing call logs, configuration details, and system information.

Technologies: Fanvil X7a. Vendors: Fanvil.

Quick answers

Is CVE-2025-70516 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-70516 being exploited in the wild.
How severe is CVE-2025-70516?: Critical severity, with a CVSS score of 9.1, published 7 October 2026.
Which products and versions are affected?: Fanvil X7a 2.6.0.1182.
Is there a fix for CVE-2025-70516?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-70516 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-70516?: Check whether you run Fanvil X7a at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The websocket handler in Fanvil x7a firmware version 2.6.0.1182 does not enforce authentication restrictions for sessionless users, allowing unauthenticated remote access to protected resources. Attackers can connect to websocket endpoints (such as /log) without valid credentials or session tokens, gaining access to operational logs and diagnostic capabilities. The vulnerability enables information disclosure and privilege escalation on affected devices.

Affected products

Fanvil x7a 2.6.0.1182

Timeline

2026-02-27: disclosed
2026-10-07: advisory

References

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