VDB-209509 · CVE-2022-40104 · GCVE-0-2022-40104

Tenda i9 1.0.0.8 String formwrlSSIDget buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Tenda i9 1.0.0.8. This vulnerability affects the function formwrlSSIDget of the component String Handler. This manipulation causes buffer overflow. The identification of this vulnerability is CVE-2022-40104. There is no exploit available.

Detailsinfo

A vulnerability was found in Tenda i9 1.0.0.8. It has been declared as critical. Affected by this vulnerability is the function formwrlSSIDget of the component String Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect availability. The summary by CVE is:

Tenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formwrlSSIDget function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted string.

The weakness was shared 09/24/2022. The advisory is shared at github.com. This vulnerability is known as CVE-2022-40104 since 09/06/2022. Technical details are known, but no exploit is available.

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

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Productinfo

Type

Router Operating System

Vendor

Tenda

Name

Version

1.0.0.8

License

commercial

Website

Vendor: https://www.tenda.com.cn/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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

09/06/2022 🔍
09/24/2022 +18 days 🔍
09/24/2022 +0 days 🔍
05/23/2025 +972 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2022-40104 (🔍)
GCVE (CVE): GCVE-0-2022-40104
GCVE (VulDB): GCVE-100-209509

Entryinfo

Created: 09/24/2022 12:48
Updated: 05/23/2025 08:52
Changes: 09/24/2022 12:48 (39), 10/23/2022 12:05 (11), 05/23/2025 08:52 (16)
Complete: 🔍
Cache ID: 216::103