What’s Vulnerable › Vulnerabilities

CVE-2020-25206

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-20 · updated 2026-06-17
• Weakness: CWE-78

Description

The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 allows authenticated command injection in the Throughput, WANStats, PhyStats, and QosStats API classes. An attacker with access to a web console account may execute operating system commands on affected devices by sending crafted POST requests to the affected endpoints (/core/api/calls/Throughput.php, /core/api/calls/WANStats.php, /core/api/calls/PhyStats.php, /core/api/calls/QosStats.php). This results in the complete takeover of the vulnerable device. This vulnerability does not occur in the older 1.5.x firmware versions.

Affected products

• Mimosa B5 Firmware: from 1.5.2 through 2.8.0.3
• Mimosa B5C Firmware: from 1.5.2 before 2.8.1.0 — fixed in 2.8.1.0
• Mimosa C5C Firmware: from 1.5.2 before 2.8.1.0 — fixed in 2.8.1.0

How to fix

Upgrade to a fixed version: Mimosa B5C Firmware 2.8.1.0; Mimosa C5C Firmware 2.8.1.0. Check the vendor advisory for mitigations.

References

• https://cwe.mitre.org/data/definitions/78.html
• https://labs.f-secure.com/advisories/
• https://labs.f-secure.com/advisories/mimosa-ptp-devices-multiple-vulnerabilities/
• https://cwe.mitre.org/data/definitions/78.html
• https://labs.f-secure.com/advisories/
• https://labs.f-secure.com/advisories/mimosa-ptp-devices-multiple-vulnerabilities/

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