A vulnerability classified as critical was found in Totolink A7100RU 7.4cu.2313_b20191024 . Affected by this vulnerability is the function setTtyServiceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler . Such manipulation of the argument ttyEnable leads to os command injection. This vulnerability is uniquely identified as CVE-2026-6113 . The attack can be launched remotely. Moreover, an exploit is present.
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✦ AI Summary· Claude Sonnet
VDB-356973 · CVE-2026-6113 · SUBMIT #356973
TOTOLINK A7100RU 7.4CU.2313_B20191024 CGI /CGI-BIN/CSTECGI.CGI SETTTYSERVICECFG TTYENABLE OS COMMAND INJECTION
HISTORYDIFFRELATEJSONXMLCTI
CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
8.9 $0-$5k 2.40+
Summaryinfo
A vulnerability, which was classified as critical, has been found in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setTtyServiceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument ttyEnable results in os command injection. This vulnerability was named CVE-2026-6113. The attack may be initiated remotely. In addition, an exploit is available.
Detailsinfo
A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. It has been classified as critical. This affects the function setTtyServiceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument ttyEnable with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-6113. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.
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.
Productinfo
Vendor
Totolink
Name
A7100RU
Version
7.4cu.2313_b20191024
License
commercial
Website
Vendor: https://www.totolink.net/
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
Vector Complexity Authentication Confidentiality Integrity Availability
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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: 🔒
0-Day Unlock Unlock Unlock Unlock
Today Unlock Unlock Unlock Unlock
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
04/11/2026 +0 days VulDB entry last update
Sourcesinfo
Vendor: totolink.net
Advisory: github.com
Status: Not defined
CVE: CVE-2026-6113 (🔒)
GCVE (CVE): GCVE-0-2026-6113
GCVE (VulDB): GCVE-100-356973
scip Labs: https://www.scip.ch/en/?labs.20161013
Entryinfo
Created: 04/11/2026 10:23
Changes: 04/11/2026 10:23 (57)
Complete: 🔍
Submitter: LtzHust2
Cache ID: 99:FA2:101
Submitinfo
Accepted
Submit #792246: Totolink A7100RU 7.4cu.2313_b20191024 Command Injection (by LtzHust2)
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