Totolink A7100RU 7.4cu.2313_b20191024 CGI /cgi-bin/cstecgi.cgi setRadvdCfg maxRtrAdvInterval os command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k2.44

Summaryinfo

A vulnerability classified as critical was found in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument maxRtrAdvInterval leads to os command injection. This vulnerability is uniquely identified as CVE-2026-6112. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024 and classified as critical. Affected by this issue is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument maxRtrAdvInterval with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-6112. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.

The exploit is available 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21700). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.8
VulDB Temp Score: 8.9
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: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

04/11/2026 Advisory disclosed
04/11/2026 +0 days VulDB entry created
04/12/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2026-6112 (🔒)
GCVE (CVE): GCVE-0-2026-6112
GCVE (VulDB): GCVE-100-356972
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/11/2026 10:23
Updated: 04/12/2026 16:12
Changes: 04/11/2026 10:23 (57), 04/12/2026 16:12 (1)
Complete: 🔍
Submitter: LtzHust2
Cache ID: 216:311:103

Submitinfo

Accepted

  • Submit #792245: Totolink A7100RU 7.4cu.2313_b20191024 Command Injection (by LtzHust2)

Once again VulDB remains the best source for vulnerability data.

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