Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1325 CNY

100%
Buy Us a Coffee

CVE-2026-35075— Hardcoded default Password for Service Account

CVSS 9.8 · Critical EPSS 0.43% · P34

Affected Version Matrix 18

VendorProductVersion RangeStatus
MBSDouble-A ProfibusV1_0_0_0< V6_0_0_7affected
MBSDouble-A x-linkV1_0_0_0< V6_0_0_7affected
MBSDouble-X CANV1_0_0_0< V6_0_0_7affected
MBSDouble-X DALIV1_0_0_0< V6_0_0_7affected
MBSDouble-X KNXV1_0_0_0< V6_0_0_7affected
MBSDouble-X LONV1_0_0_0< V6_0_0_7affected
MBSDouble-X M-BusV1_0_0_0< V6_0_0_7affected
MBSDouble-X PROFINETV1_0_0_0< V6_0_0_7affected
MBSDouble-X x-linkV1_0_0_0< V6_0_0_7affected
MBSSingle-AV1_0_0_0< V6_0_0_7affected
MBSSingle-XV1_0_0_0< V6_0_0_7affected
MBSTriple-X KNX+DALIV1_0_0_0< V6_0_0_7affected
MBSTriple-X KNX+LONV1_0_0_0< V6_0_0_7affected
MBSTriple-X KNX+M-BusV1_0_0_0< V6_0_0_7affected
MBSTriple-X PROFINET+DALIV1_0_0_0< V6_0_0_7affected
MBSTriple-X PROFINET+KNXV1_0_0_0< V6_0_0_7affected
MBSTriple-X PROFINET+LONV1_0_0_0< V6_0_0_7affected
MBSTriple-X PROFINET+M-BusV1_0_0_0< V6_0_0_7affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-35075

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Hardcoded default Password for Service Account
Source: NVD (National Vulnerability Database)
Vulnerability Description
An unauthenticated remote attacker can recover a default, hard coded password from a firmware image and thus gain full access to all affected devices.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1393
Source: NVD (National Vulnerability Database)
Vulnerability Title
MBS多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MBS Single-A等都是德国MBS公司的一系列工业通信网关。 MBS多款产品存在安全漏洞，该漏洞源于从固件镜像中可恢复默认硬编码密码，可能导致未经身份验证的远程攻击者获得完全访问权限。以下产品受到影响：Single-A、Double-A Profibus、Double-A x-link和Single-X。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
MBSSingle-A V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-A Profibus V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-A x-link V1_0_0_0 ~ V6_0_0_7 -
MBSSingle-X V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X CAN V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X DALI V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X KNX V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X LON V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X M-Bus V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X PROFINET V1_0_0_0 ~ V6_0_0_7 -
MBSDouble-X x-link V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X KNX+DALI V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X KNX+LON V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X KNX+M-Bus V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X PROFINET+DALI V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X PROFINET+KNX V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X PROFINET+LON V1_0_0_0 ~ V6_0_0_7 -
MBSTriple-X PROFINET+M-Bus V1_0_0_0 ~ V6_0_0_7 -

II. Public POCs for CVE-2026-35075

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-35075

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-35075 (1)

Same Patch Batch · MBS · 2026-06-03 · 11 CVEs total

CVE-2026-350858.8 HIGHStack buffer overflow in method gdv-serverconfig
CVE-2026-350848.8 HIGHStack buffer overflow in method dali-devconfig
CVE-2026-350838.8 HIGHStack buffer overflow in method bac-deviceobject
CVE-2026-350828.8 HIGHLocal file inclusion vulnerability and deletion in ugw-logread method
CVE-2026-350818.1 HIGHArbitrary process termination vulnerability in method ugw-logstop
CVE-2026-350798.1 HIGHArbitrary file delete vulnerability in method ugw-restore
CVE-2026-350788.1 HIGHArbitrary file delete vulnerability in method ugw-logstop
CVE-2026-350808.1 HIGHArbitrary file delete vulnerability in method ugw-restoreinfo
CVE-2026-350778.1 HIGHArbitrary file delete vulnerability in method ugw-delete-file
CVE-2026-350768.1 HIGHArbitrary file delete vulnerability in method bac-scanresult

IV. Related Vulnerabilities

Same product: Single-A
Same vendor: MBS
Same weakness: CWE-1393

V. Comments for CVE-2026-35075

No comments yet

Leave a comment