CVE-2025-41679: An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denia

Q: How do I fix CVE-2025-41679?

mbnet.mini firmware: upgrade to 2.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-41679 being exploited?

CVE-2025-41679 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-41679 affect?

CVE-2025-41679 affects mbnet.mini firmware. Severity is medium (CVSS 5.3). An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Conftool) service.

Q: How urgent is CVE-2025-41679?

Priority 37/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-41679 is a medium-severity flaw (CVSS 5.3) affecting mbnet.mini firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Conftool) service.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-787
Published	2025-07-21
Last modified	2026-06-17

Publisher (CNA): CERT VDE · Vendor: mbconnectline

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-21 10:15 UTCPublished CVE record published
2026-06-17 09:22 UTCUpdated Record last modified

mbconnectline mbnet.mini firmware UPGRADE

Affected: < 2.3.3

Fixed in: 2.3.3

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-41679?

mbnet.mini firmware: upgrade to 2.3.3. Exact commands for each OS are on this page.

Is CVE-2025-41679 being exploited?

CVE-2025-41679 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-41679 affect?

CVE-2025-41679 affects mbnet.mini firmware. Severity is medium (CVSS 5.3). An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Conftool) service.

How urgent is CVE-2025-41679?

Priority 37/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-41681 MEDIUM 4.8 UPGRADE A high privileged remote attacker can gain persistent XSS via POST requests due to improper neutralization of
CVE-2025-41678 MEDIUM 6.5 UPGRADE A high privileged remote attacker can alter the configuration database via POST requests due to improper neutr
CVE-2025-41677 MEDIUM 4.9 UPGRADE A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST r
CVE-2025-41676 MEDIUM 4.9 UPGRADE A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST r
CVE-2025-41675 HIGH 7.2 UPGRADE A high privileged remote attacker can execute arbitrary system commands via GET requests in the cloud server c

References

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