A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

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 A3300R affected
Version Status Constraints
17.0.0cu.557_b20221024 affected —

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Project Subscriptions

Vendors Products
Totolink Subscribe
A3300r Firmware Subscribe
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/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject cve-icon cve-icon
https://vuldb.com/submit/779140 cve-icon cve-icon
https://vuldb.com/vuln/354128 cve-icon cve-icon
https://vuldb.com/vuln/354128/cti cve-icon cve-icon
https://www.totolink.net/ cve-icon cve-icon
History

Mon, 30 Mar 2026 03:30:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Title Totolink A3300R cstecgi.cgi setUPnPCfg command injection
First Time appeared Totolink
Totolink a3300r Firmware
Weaknesses CWE-74
CWE-77
CPEs cpe:2.3:o:totolink:a3300r_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink a3300r Firmware
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: 2026-03-30T01:00:20.917Z

Reserved: 2026-03-29T17:50:50.164Z

Link: CVE-2026-5103

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-30T02:16:15.840

Modified: 2026-03-30T02:16:15.840

Link: CVE-2026-5103

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses