TOTOLINK X5000R 9.1.0cu.2089_B20211224 Export Ovpn cstecgi.cgi?action=exportOvpn&type=user exportOvpn filetype os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k1.21+

Summaryinfo

A vulnerability classified as critical was found in TOTOLINK X5000R 9.1.0cu.2089_B20211224. This affects the function exportOvpn of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user of the component Export Ovpn Handler. The manipulation of the argument filetype results in os command injection. This vulnerability is reported as CVE-2026-91853. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical has been found in TOTOLINK X5000R 9.1.0cu.2089_B20211224. Affected is the function exportOvpn of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user of the component Export Ovpn Handler. The manipulation of the argument filetype 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 available at github.com. This vulnerability is traded as CVE-2026-91853. 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.4
VulDB Temp Score: 6.7
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: 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

09/15/2026 Advisory disclosed
09/15/2026 +0 days VulDB entry created
09/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2026-91853 (🔒)
GCVE (CVE): GCVE-0-2026-91853
GCVE (VulDB): GCVE-100-404082
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/15/2026 11:08
Changes: 09/15/2026 11:08 (57)
Complete: 🔍
Submitter: awigwu76
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #933810: TOTOLINK X5000R V9.1.0cu.2089_B20211224 Command Injection (by awigwu76)

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