Cyber Resilience

CVE-2025-55893

MediumPublic PoC

Published: 15 December 2025

Published
15 December 2025
Modified
17 December 2025
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0036 58.5th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-55893 is a medium-severity Command Injection (CWE-77) vulnerability in Totolink N200Re Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 41.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

TOTOLINK N200RE V9.3.5u.6437_B20230519 is vulnerable to command Injection in setOpModeCfg via hostName.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
attack.mitre.org →
Why these techniques?

Command injection vulnerability in the router's web interface (setOpModeCfg via hostName) enables exploitation of a public-facing application (T1190) and facilitates arbitrary command execution on the network device CLI (T1059.008).

Affected Assets

totolink
n200re firmware
9.3.5u.6437_b20230519

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References