How severe is CVE-2023-34834?

CVE-2023-34834 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-34834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34834?

CVE-2023-34834 affects Mcl-collection Mcl-net Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34834?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-34834 published?

CVE-2023-34834 was published on 2023-06-29 and last updated on 2026-06-17.

CVE-2023-34834

CVE-2023-34834 is a medium-severity vulnerability in Mcl-collection Mcl-net Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Mcl-collection Mcl-net Firmware
Published: 2023-06-29
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-34834?: 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.
How severe is CVE-2023-34834?: CVE-2023-34834 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-34834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34834?: CVE-2023-34834 affects Mcl-collection Mcl-net Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34834?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-34834 published?: CVE-2023-34834 was published on 2023-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:mcl-collection:mcl-net_firmware:4.3.5.8788:*:*:*:*:*:*:*

More vulnerabilities in Mcl-collection Mcl-net Firmware

CVE-2023-4990 — High (CVSS 8.3): Directory traversal vulnerability in MCL-Net versions prior to 4.6 Update Package (P01) may allow attackers to read…

All CVEs affecting Mcl-collection Mcl-net Firmware →

Other CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities

CVE-2025-41240 — Critical (CVSS 10.0): Three Bitnami Helm charts mount Kubernetes Secrets under a predictable path (/opt/bitnami/*/secrets) that is located…
CVE-2024-56731 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to version 0.13.3, it's still possible to delete files under the…
CVE-2024-6209 — Critical (CVSS 10.0): Unauthorized file access in WEB Server in ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01 ; MATRIX Series…
CVE-2025-14771 — Critical (CVSS 9.9): Files or directories accessible to external parties vulnerability in ABB T-MAC Plus. This issue affects T-MAC Plus:…
CVE-2024-39931 — Critical (CVSS 9.9): Gogs through 0.13.0 allows deletion of internal files.
CVE-2021-43821 — Critical (CVSS 9.9): Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6…

Browse all CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities →