Cyber Resilience

CVE-2025-6541

RCE in Tp-Link Er706W Firmware ≤ 1.2.1

RCECommand Injection
Published
21 October 2025
Modified
24 October 2025
Patch / advisory
View advisory
CVSS Score v4 8.6
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:H/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 0.0066 48th percentile
Risk Priority 32 floored blend · peak EPSS

Summary

CVE-2025-6541 is a high-severity OS Command Injection (CWE-78) vulnerability in Tp-Link Er706W Firmware. Its CVSS base score is 8.6 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 48th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

An arbitrary OS command may be executed on the product by the user who can log in to the web management interface.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
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 →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-7850Same product: Tp-Link Er605
CVE-2025-6542Same product: Tp-Link Er605
CVE-2023-43482Same product: Tp-Link Er7206
CVE-2023-36498Same product: Tp-Link Er7206
CVE-2023-42664Same product: Tp-Link Er7206
CVE-2023-46683Same product: Tp-Link Er7206
CVE-2023-47209Same product: Tp-Link Er7206
CVE-2023-47617Same product: Tp-Link Er7206
CVE-2023-47167Same product: Tp-Link Er7206
CVE-2023-47618Same product: Tp-Link Er7206

Affected Assets

tp-link
er706w firmware
1.2.1 · ≤ 1.2.1
tp-link
er706w-4g firmware
1.2.1 · ≤ 1.2.1
tp-link
er7212pc firmware
2.1.3 · ≤ 2.1.3
tp-link
g36 firmware
1.1.4 · ≤ 1.1.4
tp-link
g611 firmware
1.2.2 · ≤ 1.2.2
tp-link
fr365 firmware
1.1.10 · ≤ 1.1.10
tp-link
fr205 firmware
1.0.3 · ≤ 1.0.3
tp-link
fr307-m2 firmware
1.2.5 · ≤ 1.2.5
tp-link
er8411 firmware
1.3.3 · ≤ 1.3.3
tp-link
er7412-m2 firmware
1.1.0 · ≤ 1.1.0
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

SI-10 Information Input Validation good match

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

AC-6 Least Privilege partial match

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

CM-7 Least Functionality partial match

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles require proper neutralization of untrusted input before command construction.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References