A vulnerability was detected in Totolink A7000R 4.1cu.4154. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00608.

Exploitation poc

Automatable no

Technical Impact partial

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 A7000R affected
Version Status Constraints
4.1cu.4154 affected —

Configuration 1 [-]

AND
cpe:2.3:o:totolink:a7000r_firmware:4.1cu.4154:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a7000r:-:*:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md cve-icon cve-icon cve-icon
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md#poc cve-icon cve-icon cve-icon
https://vuldb.com/?ctiid.343231 cve-icon cve-icon
https://vuldb.com/?id.343231 cve-icon cve-icon
https://vuldb.com/?submit.739713 cve-icon cve-icon
https://www.totolink.net/ cve-icon cve-icon
History

Mon, 09 Feb 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Totolink a7000r Firmware
CPEs cpe:2.3:h:totolink:a7000r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a7000r_firmware:4.1cu.4154:*:*:*:*:*:*:*
Vendors & Products Totolink a7000r Firmware

Thu, 29 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 29 Jan 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Totolink
Totolink a7000r
Vendors & Products Totolink
Totolink a7000r

Wed, 28 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was detected in Totolink A7000R 4.1cu.4154. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.
Title Totolink A7000R cstecgi.cgi setUnloadUserData command injection
Weaknesses CWE-74
CWE-77
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-01-29T16:54:19.511Z

Reserved: 2026-01-28T15:29:16.755Z

Link: CVE-2026-1547

cve-icon Vulnrichment

Updated: 2026-01-29T16:01:10.770Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-28T22:15:55.853

Modified: 2026-02-09T16:56:16.900

Link: CVE-2026-1547

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-29T09:08:57Z

Weaknesses