VDB-261787 · CVE-2024-3911 · VDE-2024-023

Welotec SMART EMS/VPN Security Suite up to 3.1.3 ui layer

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Welotec SMART EMS and VPN Security Suite up to 3.1.3. This impacts an unknown function. This manipulation causes ui layer. This vulnerability is tracked as CVE-2024-3911. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Welotec SMART EMS and VPN Security Suite up to 3.1.3 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a ui layer vulnerability. The CWE definition for the vulnerability is CWE-1021. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with. As an impact it is known to affect integrity. The summary by CVE is:

An unauthenticated remote attacker can deceive users into performing unintended actions due to improper restriction of rendered UI layers or frames.

It is possible to read the advisory at cert.vde.com. This vulnerability is known as CVE-2024-3911 since 04/17/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.1.4 eliminates this vulnerability.

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

Productinfo

Type

Network Encryption Software

Vendor

Welotec

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (CERT VDE): 🔍

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: Ui layer
CWE: CWE-1021
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SMART EMS/VPN Security Suite 3.1.4

Timelineinfo

04/17/2024 🔍
04/23/2024 +6 days 🔍
04/23/2024 +0 days 🔍
08/28/2025 +492 days 🔍

Sourcesinfo

Advisory: VDE-2024-023
Status: Confirmed

CVE: CVE-2024-3911 (🔍)
GCVE (CVE): GCVE-0-2024-3911
GCVE (VulDB): GCVE-100-261787

Entryinfo

Created: 04/23/2024 14:49
Updated: 08/28/2025 07:34
Changes: 04/23/2024 14:49 (63), 05/28/2024 18:09 (1), 04/04/2025 06:45 (4), 08/28/2025 07:34 (1)
Complete: 🔍
Cache ID: 216::103