Cyber Resilience

CVE-2025-6618

LowPublic PoC

Published: 25 June 2025

Published
25 June 2025
Modified
29 April 2026
KEV Added
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Patch
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CVSS Score v4 2.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 0.0699 91.6th percentile
Risk Priority 8 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-6618 is a low-severity Command Injection (CWE-77) vulnerability in Totolink Ca300-Poe Firmware. Its CVSS base score is 2.1 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 8.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

A vulnerability classified as critical exists in the TOTOLINK CA300-PoE firmware version 6.2c.884. It resides in the SetWLanApcliSettings function within the wps.so file, where improper handling of the PIN argument enables operating system command injection. The issue is tracked under CVE-2025-6618 and corresponds to CWE-77 and CWE-78.

An authenticated attacker can exploit the flaw remotely by supplying a crafted PIN value to the affected function. Successful exploitation grants the ability to execute arbitrary operating system commands on the device, with impacts limited to confidentiality, integrity, and availability within the local security context.

Public proof-of-concept code has been released via GitHub, and the EPSS score remains flat at 0.0699 with no material increase since disclosure. No vendor advisory or patch information appears in the referenced sources.

EU & UK References

Vulnerability details

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been classified as critical. Affected is the function SetWLanApcliSettings of the file wps.so. The manipulation of the argument PIN leads to os command injection. It is possible to launch the…

more

attack remotely. The exploit has been disclosed to the public and may be used.

CWE(s)
CWE-77CWE-78

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 →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1202 Indirect Command Execution Stealth
Adversaries may abuse utilities that allow for command execution to bypass security restrictions that limit the use of command-line interpreters.
attack.mitre.org →
Why these techniques?

CVE-2025-6618 enables remote exploitation of a public-facing web application (T1190) through OS command injection in the SetWLanApcliSettings function via the PIN parameter, facilitating indirect command execution (T1202) and Unix shell access (T1059.004) on the Linux-based TOTOLINK device.

Affected Assets

totolink
ca300-poe firmware
6.2c.884

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.

SC-27 Platform-independent Applications
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.

SI-10 Information Input Validation
addresses: CWE-78

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

References