CVE-2023-34834

Mcl Net Firmware vulnerability

CVSS

5.3

EPSS

4.0%

EPSS pct

89th

Exploited

No known

A Directory Browsing vulnerability in MCL-Net version 4.3.5.8788 webserver running on default port 5080, allows attackers to gain sensitive information about the configured databases via the "/file" endpoint.

Affected vendor

Mcl Collection

Affected product

Mcl Net Firmware

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness type (CWE)

CWE-552 — Files or Directories Accessible to External Parties

Published

2023-06-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2023-34834

Confirm whether Mcl Collection Mcl Net Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-34834.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-34834

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-34834 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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