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CVE-2026-35078— Arbitrary file delete vulnerability in method ugw-logstop

CVSS 8.1 · High EPSS 0.37% · P30

Possible ATT&CK Techniques 2AI

T1070 · Indicator Removal T1070.002

Affected Version Matrix 18

VendorProductVersion RangeStatus
MBSDouble-A ProfibusV1_00_00< V6_00_07affected
MBSDouble-A x-linkV1_00_00< V6_00_07affected
MBSDouble-X CANV1_00_00< V6_00_07affected
MBSDouble-X DALIV1_00_00< V6_00_07affected
MBSDouble-X KNXV1_00_00< V6_00_07affected
MBSDouble-X LONV1_00_00< V6_00_07affected
MBSDouble-X M-BusV1_00_00< V6_00_07affected
MBSDouble-X PROFINETV1_00_00< V6_00_07affected
MBSDouble-X x-linkV1_00_00< V6_00_07affected
MBSSingle-AV1_00_00< V6_00_07affected
MBSSingle-XV1_00_00< V6_00_07affected
MBSTriple-X KNX+DALIV1_00_00< V6_00_07affected
MBSTriple-X KNX+LONV1_00_00< V6_00_07affected
MBSTriple-X KNX+M-BusV1_00_00< V6_00_07affected
MBSTriple-X PROFINET+DALIV1_00_00< V6_00_07affected
MBSTriple-X PROFINET+KNXV1_00_00< V6_00_07affected
MBSTriple-X PROFINET+LONV1_00_00< V6_00_07affected
MBSTriple-X PROFINET+M-BusV1_00_00< V6_00_07affected
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I. Basic Information for CVE-2026-35078

Vulnerability Information
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Vulnerability Title
Arbitrary file delete vulnerability in method ugw-logstop
Source: CVE Program / CVE List V5
Vulnerability Description
The ugw-logstop method allows a remote attacker with user privileges to delete arbitrary local files due to insufficient validation of user-controlled input.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
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ugw-logstop方法对用户控制输入验证不足，可能导致远程攻击者删除任意本地文件。以下产品受到影响：Single-A、Double-A Profibus、Double-A x-link、Single-X和Double-X CAN。
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_00_00 ~ V6_00_07 -
MBSDouble-A Profibus V1_00_00 ~ V6_00_07 -
MBSDouble-A x-link V1_00_00 ~ V6_00_07 -
MBSSingle-X V1_00_00 ~ V6_00_07 -
MBSDouble-X CAN V1_00_00 ~ V6_00_07 -
MBSDouble-X DALI V1_00_00 ~ V6_00_07 -
MBSDouble-X KNX V1_00_00 ~ V6_00_07 -
MBSDouble-X LON V1_00_00 ~ V6_00_07 -
MBSDouble-X M-Bus V1_00_00 ~ V6_00_07 -
MBSDouble-X PROFINET V1_00_00 ~ V6_00_07 -
MBSDouble-X x-link V1_00_00 ~ V6_00_07 -
MBSTriple-X KNX+DALI V1_00_00 ~ V6_00_07 -
MBSTriple-X KNX+LON V1_00_00 ~ V6_00_07 -
MBSTriple-X KNX+M-Bus V1_00_00 ~ V6_00_07 -
MBSTriple-X PROFINET+DALI V1_00_00 ~ V6_00_07 -
MBSTriple-X PROFINET+KNX V1_00_00 ~ V6_00_07 -
MBSTriple-X PROFINET+LON V1_00_00 ~ V6_00_07 -
MBSTriple-X PROFINET+M-Bus V1_00_00 ~ V6_00_07 -

II. Public POCs for CVE-2026-35078

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III. Intelligence Information for CVE-2026-35078

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Vendor Advisories for CVE-2026-35078 (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-2026-350818.1 HIGHArbitrary process termination vulnerability in method ugw-logstop
CVE-2026-350798.1 HIGHArbitrary file delete vulnerability in method ugw-restore
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-73

V. Comments for CVE-2026-35078

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