What’s Vulnerable › Vulnerabilities

CVE-2025-63292

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-17 · updated 2026-06-17
• Weakness: CWE-319

Description

Freebox v5 HD (firmware = 1.7.20), Freebox v5 Crystal (firmware = 1.7.20), Freebox v6 Révolution r1–r3 (firmware = 4.7.x), Freebox Mini 4K (firmware = 4.7.x), and Freebox One (firmware = 4.7.x) were discovered to expose subscribers' IMSI identifiers in plaintext during the initial phase of EAP-SIM authentication over the `FreeWifi_secure` network. During the EAP-Response/Identity exchange, the subscriber's full Network Access Identifier (NAI), which embeds the raw IMSI, is transmitted without encryption, tunneling, or pseudonymization. An attacker located within Wi-Fi range (~100 meters) can passively capture these frames without requiring user interaction or elevated privileges. The disclosed IMSI enables device tracking, subscriber correlation, and long-term monitoring of user presence near any broadcasting Freebox device. The vendor acknowledged the vulnerability, and the `FreeWifi_secure` service is planned for full deactivation by 1 October 2025.

Affected products

• Freebox Mini 4K Firmware: through 4.7.0
• Freebox One Firmware: through 4.7.0
• Freebox V5 Crystal Firmware: through 1.7.20
• Freebox V5 Hd Firmware: through 1.7.20
• Freebox V6 Revolution Firmware: through 4.7.0

References

• https://7h30th3r0n3.fr/the-vulnerability-that-killed-freewifi_secure/
• https://gist.github.com/7h30th3r0n3/1a0fadb19f1528e3d3f6bad9f680c3b0#file-cve-2025-63292-frebox-imsi-md

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