CVE-2026-4611 - Vulnerability Details

- TOTOLINK X6000R shttpd setLanCfg privilege escalation

Description

A flaw has been found in TOTOLINK X6000R 9.4.0cu.1360_B20241207/9.4.0cu.1498_B20250826. Affected by this issue is the function setLanCfg of the file /usr/sbin/shttpd. Executing a manipulation of the argument Hostname can lead to os command injection. The attack may be launched remotely.

Published: 2026-03-23

Score: 8.6 High

EPSS: 1.3% Low

KEV: No

Impact:

Action:

Analysis

Impact

The setLanCfg function within the shttpd daemon on certain TOTOLINK X6000R routers allows a craft host‑name argument to trigger operating‑system command injection. By exploiting this flaw an attacker can run arbitrary commands with the privileges of the shttpd process, effectively gaining privileged control over the device. The vulnerability is related to Command Injection weaknesses (CWE‑77) and Shell Command Injection (CWE‑78).

Affected Systems

Devices running the TOTOLINK X6000R firmware versions 9.4.0cu.1360_B20241207 or 9.4.0cu.1498_B20250826 are vulnerable. The affected product is the X6000R router model, accessible via its web management interface.

Risk and Exploitability

The flaw can be triggered remotely through the exposed HTTP service; no prior authentication or local access is required beyond network connectivity to the router. Its rating indicates high severity, but current exploit prevalence is expected to be low. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog, yet an attacker who succeeds could fully compromise the device, allowing unauthorized configuration changes, data exfiltration, and persistence within the network.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

TOTOLINK

X6000R

affected

Version	Status	Constraints
`9.4.0cu.1360_B20241207`	affected	—
`9.4.0cu.1498_B20250826`	affected	—

Configuration 1 [-]

AND

OR	cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1360_b20241207:::::::*
	cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1498_b20250826:::::::*

cpe:2.3:h:totolink:x6000r:-:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions

Totolink

X6000r

100%

Version	Status	Scheme	Platform
`9.4.0cu.1360_B20241207`	affected	generic	—
`9.4.0cu.1498_B20250826`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the latest firmware update for the X6000R router if a version newer than 9.4.0cu.1498_B20250826 is available.
If a firmware update cannot be applied immediately, disable the shttpd service or block all external traffic to the router’s HTTP management interface with firewall rules.
Restrict management access to the router so that only trusted hosts or subnets can reach the web interface.
Monitor router logs for unexpected Hostname changes or shell command execution events and alert on suspicious activity.

Generated by OpenCVE AI on April 3, 2026 at 13:50 UTC.

Tracking

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Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.01287.

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://vuldb.com/?ctiid.352475
https://vuldb.com/?id.352475
https://vuldb.com/?submit.775642
https://www.totolink.net/

History

Fri, 03 Apr 2026 11:30:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:h:totolink:x6000r:-:::::::* cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1360_b20241207:::::::* cpe:2.3:o:totolink:x6000r_firmware:9.4.0cu.1498_b20250826:::::::*

Wed, 25 Mar 2026 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 24 Mar 2026 10:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Totolink x6000r
Vendors & Products		Totolink x6000r

Tue, 24 Mar 2026 02:30:00 +0000

Type	Values Removed	Values Added
Description		A flaw has been found in TOTOLINK X6000R 9.4.0cu.1360_B20241207/9.4.0cu.1498_B20250826. Affected by this issue is the function setLanCfg of the file /usr/sbin/shttpd. Executing a manipulation of the argument Hostname can lead to os command injection. The attack may be launched remotely.
Title		TOTOLINK X6000R shttpd setLanCfg privilege escalation
First Time appeared		Totolink Totolink x6000r Firmware
Weaknesses		CWE-77 CWE-78
CPEs		cpe:2.3:o:totolink:x6000r_firmware::::::::
Vendors & Products		Totolink Totolink x6000r Firmware
References		https://vuldb.com/?ctiid.352475 https://vuldb.com/?id.352475 https://vuldb.com/?submit.775642 https://www.totolink.net/
Metrics		cvssV2_0 `{'score': 8.3, 'vector': 'AV:N/AC:L/Au:M/C:C/I:C/A:C/E:ND/RL:ND/RC:UR'}` cvssV3_0 `{'score': 7.2, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R'}` cvssV3_1 `{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R'}` cvssV4_0 `{'score': 8.6, 'vector': 'CVSS: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'}`

Subscriptions

Totolink X6000r X6000r Firmware

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-03-23T21:13:27.140Z

Updated: 2026-03-25T19:14:18.836Z

Reserved: 2026-03-23T05:43:53.029Z

Link: CVE-2026-4611

Vulnrichment

Updated: 2026-03-25T19:14:15.410Z

NVD

Status : Analyzed

Published: 2026-03-23T22:16:31.463

Modified: 2026-04-03T11:31:14.030

Link: CVE-2026-4611

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-03T21:18:07Z

Weaknesses

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

Exploitation none

Automatable no

Technical Impact total

Subscriptions

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