The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 allows authenticated command injection in the Throughput, WANStats, Ph…

published 2021-07-20 5y ago modified 2026-06-17 4mo ago also EUVD-2020-17896

cvss: 7.2; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.3%; EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

mimosa b5c_firmware 2.8.1.0
mimosa c5c_firmware 2.8.1.0

Is CVE-2020-25206 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

5.31% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

labs.f-secure.com https://labs.f-secure.com/advisories/mimosa-ptp-devices-multiple-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

labs.f-secure.com /advisories/mimosa-ptp-devices-multiple-vulnerabilities/
exploit, third-party-advisory
cwe.mitre.org /data/definitions/78.html
third-party-advisory
labs.f-secure.com /advisories/
third-party-advisory

Sources

CVE List CVE-2020-25206
NVD CVE-2020-25206

Fencer Intel 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.