Which versions of A7000r Firmware are affected by CVE-2026-1601?

Organizations using A weakness should be aware of moderate risk from CVE-2026-1601, a injection vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2026-1601?

Yes, a public proof-of-concept exploit is available for CVE-2026-1601. Prioritise patching immediately. EPSS: 8.3%.

How to fix or mitigate CVE-2026-1601?

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

A7000r Firmware CVE-2026-1601

Q: What is the CVSS score of CVE-2026-1601?

CVE-2026-1601 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: 8.3%.

LOW

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

2026-01-29 cna@vuldb.com

Command Injection A7000r 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)

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Feb 10, 2026 - 15:13 vuln.today

Public exploit code

CVE Published

Jan 29, 2026 - 19:16 nvd

MEDIUM 6.3

DescriptionCVE.org

A weakness has been identified in Totolink A7000R 4.1cu.4154. The impacted element is the function setUploadUserData of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument FileName can lead to command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

A7000R Firmware versions up to 4.1cu.4154 contains a vulnerability that allows attackers to command injection (CVSS 6.3).

Technical ContextAI

affects A7000R Firmware. A weakness has been identified in Totolink A7000R 4.1cu.4154. The impacted element is the function setUploadUserData of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument FileName can lead to command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.