VDB-348362 · CVE-2026-24108 · GCVE-0-2026-24108

Tenda W20E 15.11.0.6 getMibPrefix nptr 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.
9.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Tenda W20E 15.11.0.6. This vulnerability affects the function getMibPrefix. Such manipulation of the argument nptr leads to buffer overflow. This vulnerability is uniquely identified as CVE-2026-24108. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Tenda W20E 15.11.0.6. It has been rated as critical. Affected by this issue is the function getMibPrefix. The manipulation of the argument nptr with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `sprintf` without proper size validation, it could lead to a buffer overflow vulnerability.

The advisory is available at tenda.com.cn. This vulnerability is handled as CVE-2026-24108 since 01/21/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/04/2026).

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

Type

Router Operating System

Vendor

Tenda

Name

W20E

Version

15.11.0.6

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: 9.3
VulDB Meta Temp Score: 9.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 9.8
ADP CISA 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: 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

01/21/2026 CVE reserved
03/02/2026 +40 days Advisory disclosed
03/02/2026 +0 days VulDB entry created
03/04/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: tenda.com.cn
Status: Confirmed

CVE: CVE-2026-24108 (🔒)
GCVE (CVE): GCVE-0-2026-24108
GCVE (VulDB): GCVE-100-348362

Entryinfo

Created: 03/02/2026 16:36
Updated: 03/04/2026 03:44
Changes: 03/02/2026 16:36 (55), 03/04/2026 03:44 (11)
Complete: 🔍
Cache ID: 216::103