VDB-212387 · CVE-2022-40874 · GCVE-0-2022-40874

Tenda AX1803 up to 1.0.0.1 HTTP Request GetParentControlInfo heap-based 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 was found in Tenda AX1803 up to 1.0.0.1. It has been rated as critical. Affected is the function GetParentControlInfo of the component HTTP Request Handler. The manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2022-40874. No exploit exists.

Detailsinfo

A vulnerability was found in Tenda AX1803 up to 1.0.0.1 and classified as critical. This issue affects the function GetParentControlInfo of the component HTTP Request Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Tenda AX1803 v1.0.0.1 was discovered to contain a heap overflow vulnerability in the GetParentControlInfo function, which can cause a denial of service attack through a carefully constructed http request.

The weakness was disclosed 10/28/2022. It is possible to read the advisory at cnblogs.com. The identification of this vulnerability is CVE-2022-40874 since 09/19/2022. Technical details of the vulnerability are known, but there is no available exploit.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Tenda

Name

AX1803

Version

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: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / 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

09/19/2022 🔍
10/28/2022 +39 days 🔍
10/28/2022 +0 days 🔍
05/07/2025 +922 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: cnblogs.com
Status: Not defined

CVE: CVE-2022-40874 (🔍)
GCVE (CVE): GCVE-0-2022-40874
GCVE (VulDB): GCVE-100-212387

Entryinfo

Created: 10/28/2022 06:55
Updated: 05/07/2025 22:43
Changes: 10/28/2022 06:55 (39), 11/26/2022 08:16 (12), 05/07/2025 22:43 (16)
Complete: 🔍
Cache ID: 216::103