Totolink A3300R 17.0.0cu.557_b20221024 /cgi-bin/cstecgi.cgi setIptvCfg vlanPriLan3 command injection

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k1.45

Summaryinfo

A vulnerability was found in Totolink A3300R 17.0.0cu.557_b20221024 and classified as critical. This affects the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 results in command injection. This vulnerability is identified as CVE-2026-5178. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Totolink A3300R 17.0.0cu.557_b20221024. It has been classified as critical. Affected is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-5178. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/30/2026 Advisory disclosed
03/30/2026 +0 days VulDB entry created
03/30/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2026-5178 (🔒)
GCVE (CVE): GCVE-0-2026-5178
GCVE (VulDB): GCVE-100-354246
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/30/2026 20:58
Changes: 03/30/2026 20:58 (56)
Complete: 🔍
Submitter: LvHW
Cache ID: 216:B6B:103

Submitinfo

Accepted

  • Submit #779147: Totolink A3300R 17.0.0cu.557_b20221024 Command Injection (by LvHW)

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