Cyber Resilience

CVE-2025-6559

CriticalRCE

Published: 24 June 2025

Published
24 June 2025
Modified
15 April 2026
KEV Added
Patch
CVSS Score v4 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0107 78.1th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-6559 is a critical-severity OS Command Injection (CWE-78) vulnerability in Org (inferred from references). Its CVSS base score is 9.3 (Critical).

Operationally, ranked in the top 21.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

Multiple wireless router models from Sapido contain an OS command injection vulnerability, identified as CVE-2025-6559 and assigned CWE-78. The flaw resides in the devices' handling of remote inputs and carries a CVSS 4.0 score of 9.3, reflecting network-accessible attack vectors that require no authentication or user interaction.

Unauthenticated remote attackers can supply crafted commands that are executed directly on the router with full privileges, resulting in complete compromise of confidentiality, integrity, and availability on the affected device.

Taiwan's CERT advisories for the issue state that the impacted models are no longer supported and explicitly recommend device replacement as the only effective mitigation.

The associated EPSS score has remained flat at 0.0107 with no material increase since disclosure.

EU & UK References

Vulnerability details

Multiple wireless router models from Sapido have an OS Command Injection vulnerability, allowing unauthenticated remote attackers to inject arbitrary OS commands and execute them on the server. The affected models are out of support; replacing the device is recommended.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Org
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References