A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Metrics

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.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Totolink
  • A3300r
  • A3300r Firmware

Configuration 1 [-]

AND
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_39/README.md cve-icon cve-icon
https://vuldb.com/submit/779128 cve-icon cve-icon
https://vuldb.com/vuln/354126 cve-icon cve-icon
https://vuldb.com/vuln/354126/cti cve-icon cve-icon
https://www.totolink.net/ cve-icon cve-icon
History

Mon, 30 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-78
CPEs cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*

Mon, 30 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 30 Mar 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Totolink a3300r
Vendors & Products Totolink a3300r

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

Type Values Removed Values Added
Description A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Title Totolink A3300R Parameter cstecgi.cgi setLanCfg 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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-03-29T23:00:15.592Z

Updated: 2026-03-30T14:52:01.775Z

Reserved: 2026-03-29T17:50:43.221Z

Link: CVE-2026-5101

cve-icon Vulnrichment

Updated: 2026-03-30T13:13:58.210Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-29T23:16:48.597

Modified: 2026-03-30T15:45:51.677

Link: CVE-2026-5101

cve-icon Redhat

No data.