How severe is CVE-2025-64055?

CVE-2025-64055 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-64055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-64055?

CVE-2025-64055 affects Fanvil X210 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-64055?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-64055 have an EU (EUVD) identifier?

Yes. CVE-2025-64055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201105.

When was CVE-2025-64055 published?

CVE-2025-64055 was published on 2025-12-03 and last updated on 2026-07-05.

CVE-2025-64055

CVE-2025-64055 is a critical-severity vulnerability in Fanvil X210 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201105
Weakness: CWE-287
Affected product: Fanvil X210 Firmware
Published: 2025-12-03
Last modified: 2026-07-05

Description

An issue was discovered in Fanvil x210 V2 2.12.20 allowing unauthenticated attackers on the local network to access administrative functions of the device (e.g. file upload, firmware update, reboot...) via a crafted authentication bypass.

Frequently asked questions

What is CVE-2025-64055?: An issue was discovered in Fanvil x210 V2 2.12.20 allowing unauthenticated attackers on the local network to access administrative functions of the device (e.g. file upload, firmware update, reboot...) via a crafted authentication bypass.
How severe is CVE-2025-64055?: CVE-2025-64055 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-64055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-64055?: CVE-2025-64055 affects Fanvil X210 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-64055?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-64055 have an EU (EUVD) identifier?: Yes. CVE-2025-64055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201105.
When was CVE-2025-64055 published?: CVE-2025-64055 was published on 2025-12-03 and last updated on 2026-07-05.

References

https://github.com/SpikeReply/advisories/blob/main/cve/fanvil/cve-2025-64055.md

EU advisories (EUVD)

http://fanvil.com

Affected products (1)

cpe:2.3:o:fanvil:x210_firmware:2.12.20:*:*:*:*:*:*:*

More vulnerabilities in Fanvil X210 Firmware

CVE-2025-64054 — Critical (CVSS 9.6): A reflected Cross Site Scripting (XSS) vulnerability on Fanvil x210 2.12.20 devices allows attackers to cause a denial…
CVE-2025-64057 — High (CVSS 8.3): Directory traversal vulnerability in Fanvil x210 V2 2.12.20 allows unauthenticated attackers on the local network to…
CVE-2025-64053 — High (CVSS 7.5): A Buffer overflow vulnerability on Fanvil x210 2.12.20 devices allows attackers to cause a denial of service or…
CVE-2025-64052 — Medium (CVSS 5.1): An issue was discovered in Fanvil x210 V2 2.12.20 allowing unauthenticated attackers on the local network to execute…
CVE-2025-64056 — Medium (CVSS 4.3): File upload vulnerability in Fanvil x210 V2 2.12.20 allows unauthenticated attackers on the local network to store…

All CVEs affecting Fanvil X210 Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →