MBS Single-A prior 6_0_0_7 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.
8.6	$0-$5k	1.02

Summaryinfo

A vulnerability has been found in MBS Single-A, Double-A Profibus, Double-A x-link, Single-X, Double-X CAN, Double-X DALI, Double-X KNX, Double-X LON, Double-X M-Bus, Double-X PROFINET, Double-X x-link, Triple-X KNX+DALI, Triple-X KNX+LON, Triple-X KNX+M-Bus, Triple-X PROFINET+DALI, Triple-X PROFINET+KNX, Triple-X PROFINET+LON and Triple-X PROFINET+M-Bus and classified as critical. Affected by this issue is some unknown functionality. The manipulation leads to stack-based overflow. This vulnerability is referenced as CVE-2026-35084. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MBS Single-A, Double-A Profibus, Double-A x-link, Single-X, Double-X CAN, Double-X DALI, Double-X KNX, Double-X LON, Double-X M-Bus, Double-X PROFINET, Double-X x-link, Triple-X KNX+DALI, Triple-X KNX+LON, Triple-X KNX+M-Bus, Triple-X PROFINET+DALI, Triple-X PROFINET+KNX, Triple-X PROFINET+LON and Triple-X PROFINET+M-Bus and classified as critical. This issue affects an unknown part. The manipulation 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:

A remote attacker with user privileges can exploit a stack buffer overflow in dali-devconfig to gain full system access as root.

The weakness was published by Adrien Rey as VDE-2026-039. The advisory is shared at certvde.com. The identification of this vulnerability is CVE-2026-35084 since 04/01/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/03/2026).

Upgrading to version 6_0_0_7 eliminates this vulnerability.

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

Productinfo

Vendor

• MBS

Name

• Double-A Profibus
• Double-A x-link
• Double-X CAN
• Double-X DALI
• Double-X KNX
• Double-X LON
• Double-X M-Bus
• Double-X PROFINET
• Double-X x-link
• Single-A
• Single-X
• Triple-X KNX+DALI
• Triple-X KNX+LON
• Triple-X KNX+M-Bus
• Triple-X PROFINET+DALI
• Triple-X PROFINET+KNX
• Triple-X PROFINET+LON
• Triple-X PROFINET+M-Bus

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (CERTVDE): 🔒

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
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: Single-A/Double-A Profibus/Double-A x-link/Single-X/Double-X CAN/Double-X DALI/Double-X KNX/Double-X LON/Double-X M-Bus/Double-X PROFINET/Double-X x-link/Triple-X KNX+DALI/Triple-X KNX+LON/Triple-X KNX+M-Bus/Triple-X PROFINET+DALI/Triple-X PROFINET+KNX/Triple-X PROFINET+LON/Triple-X PROFINET+M-Bus 6_0_0_7

Timelineinfo

04/01/2026 CVE reserved
06/03/2026 +63 days Advisory disclosed
06/03/2026 +0 days VulDB entry created
06/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: VDE-2026-039
Researcher: Adrien Rey
Status: Confirmed

CVE: CVE-2026-35084 (🔒)
GCVE (CVE): GCVE-0-2026-35084
GCVE (VulDB): GCVE-100-368105

Entryinfo

Created: 06/03/2026 15:59
Changes: 06/03/2026 15:59 (42), 06/03/2026 16:00 (34)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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