Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656 Cookie send_order.cgi?parameter=loginout session_id 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-$5k1.92-

Summaryinfo

A vulnerability described as critical has been identified in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656. Affected by this vulnerability is an unknown functionality of the file /send_order.cgi?parameter=loginout of the component Cookie Handler. Such manipulation of the argument session_id leads to command injection. This vulnerability is documented as CVE-2026-94139. The attack can be executed remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656 and classified as critical. Affected by this issue is an unknown code block of the file /send_order.cgi?parameter=loginout of the component Cookie Handler. The manipulation of the argument session_id with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at uvxbywu62qm.feishu.cn. This vulnerability is handled as CVE-2026-94139. The exploitation is known to be easy. The attack may be launched remotely. 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 uvxbywu62qm.feishu.cn. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

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-2026-83832). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

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: 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: 🔒
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

09/20/2026 Advisory disclosed
09/20/2026 +0 days VulDB entry created
09/21/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: uvxbywu62qm.feishu.cn
Status: Not defined

CVE: CVE-2026-94139 (🔒)
GCVE (CVE): GCVE-0-2026-94139
GCVE (VulDB): GCVE-100-408056
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/20/2026 21:43
Updated: 09/21/2026 07:15
Changes: 09/20/2026 21:43 (57), 09/21/2026 07:15 (1)
Complete: 🔍
Submitter: liyunpeng
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #893914: Chengdu Feiyuxing Technology Co., Ltd Feiyu Star router B-MB5E202-210322-r11656 Command Injection (by liyunpeng)

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

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