EUVD-2026-71450
GHSA-q98h-8j3q-h49w
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CGI endpoint is network-accessible with no special conditions; PR:L reflects mandatory Standard-role login; only filesystem read is possible so I:N and A:N.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
An arbitrary file read vulnerability in /cgi-bin/ugwdownload.cgi of MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with the low-privileged Standard role to retrieve arbitrary files from the device filesystem via the file query string parameter.
AnalysisAI
Arbitrary file read in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows any authenticated user holding only the low-privileged Standard role to retrieve arbitrary files from the device filesystem by manipulating the file query string parameter of /cgi-bin/ugwdownload.cgi. A public proof-of-concept exploit is available in SilviaMun's vulnerability-research repository on GitHub, significantly lowering the skill threshold for exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated session with at least the low-privileged Standard role on the MBS-Solutions X-Serie Gateway running firmware V6_00_05; unauthenticated access is not possible (PR:L in CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N is a sound representation: the endpoint is network-reachable, exploitation is low-complexity, and only a Standard-role login is needed, while impact is confined to confidentiality. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No patched firmware version is identified in the available references - the vendor reference URLs point to MBS-Solutions' general product pages (https://en.mbs-solutions.de/mbs and https://en.mbs-solutions.de/xserie) rather than a specific security advisory or changelog. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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