VDB-237953 · CVE-2023-40899 · EUVD-2023-45438

Tenda AC8 16.03.34.06_cn /goform/setMacFilterCfg macFilterType/deviceList stack-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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Tenda AC8 16.03.34.06_cn. Affected by this issue is some unknown functionality of the file /goform/setMacFilterCfg. The manipulation of the argument macFilterType/deviceList leads to stack-based overflow. This vulnerability is listed as CVE-2023-40899. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Tenda AC8 16.03.34.06_cn. This issue affects some unknown functionality of the file /goform/setMacFilterCfg. The manipulation of the argument macFilterType/deviceList with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter macFilterType and parameter deviceList at /goform/setMacFilterCfg.

The weakness was presented 08/25/2023. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-40899 since 08/22/2023. 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-45438). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Tenda

Name

Version

16.03.34.06_cn

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: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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

08/22/2023 🔍
08/25/2023 +3 days 🔍
08/25/2023 +0 days 🔍
01/30/2026 +889 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2023-40899 (🔍)
GCVE (CVE): GCVE-0-2023-40899
GCVE (VulDB): GCVE-100-237953
EUVD: 🔍

Entryinfo

Created: 08/25/2023 07:11
Updated: 01/30/2026 04:39
Changes: 08/25/2023 07:11 (39), 09/20/2023 08:49 (11), 01/30/2026 04:39 (17)
Complete: 🔍
Cache ID: 216::103

Submitinfo

Duplicate

Submit #XXXXXX: Xxxxx Xxx Xxx.xx.xx.xx Xxxxxx Xxxxxxxx (by Raining101)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.