Which versions of T6 Firmware are affected by CVE-2025-7525?

Organizations using A vulnerability should be aware of moderate risk from CVE-2025-7525, a injection vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2025-7525?

Yes, a public proof-of-concept exploit is available for CVE-2025-7525. Prioritise patching immediately. EPSS: 1.6%.

How to fix or mitigate CVE-2025-7525?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

T6 Firmware CVE-2025-7525

Q: What is the CVSS score of CVE-2025-7525?

CVE-2025-7525 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: 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 exploitation probability: 1.6%.

EUVD-2025-21254 LOW

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2025-07-13 cna@vuldb.com

Command Injection T6 Firmware TOTOLINK

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

EUVD ID Assigned

Mar 16, 2026 - 09:18 euvd

EUVD-2025-21254

Analysis Generated

Mar 16, 2026 - 09:18 vuln.today

PoC Detected

Jul 15, 2025 - 20:15 vuln.today

Public exploit code

CVE Published

Jul 13, 2025 - 10:15 cve.org

LOW 2.1

CVE Published

Jul 13, 2025 - 10:15 nvd

MEDIUM 6.3

DescriptionCVE.org

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been declared as critical. This vulnerability affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument command leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Command injection in TOTOLINK T6 router firmware allows authenticated low-privilege remote attackers to execute arbitrary OS commands via a crafted HTTP POST request to the /cgi-bin/cstecgi.cgi endpoint. Public exploit code is available, increasing the risk of automated or opportunistic attacks, but no active exploitation is confirmed via CISA KEV. While the CNA-assigned CVSS 4.0 score is low (2.1), real-world impact may be total device compromise if the web server runs with elevated privileges, as is common in embedded routers.