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CVE-2026-35081— Arbitrary process termination vulnerability in method ugw-logstop

CVSS 8.1 · High EPSS 0.37% · P29

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
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I. Basic Information for CVE-2026-35081

Vulnerability Information
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Vulnerability Title
Arbitrary process termination vulnerability in method ugw-logstop
Source: NVD (National Vulnerability Database)
Vulnerability Description
The ugw-logstop method allows a remote attacker with user privileges to terminate arbitrary processes due to insufficient validation of user-supplied input.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
MBS多款产品 输入验证错误漏洞
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多款产品存在输入验证错误漏洞，该漏洞源于ugw-logstop方法对用户提供输入验证不足，可能导致远程攻击者终止任意进程。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-2026-35081

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III. Intelligence Information for CVE-2026-35081

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Vendor Advisories for CVE-2026-35081 (1)

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

CVE-2026-350759.8 CRITICALHardcoded default Password for Service Account
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-2026-350798.1 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-20

V. Comments for CVE-2026-35081

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