CVE-2025-6530: A vulnerability was found in 70mai M300 up to 20250611

Q: How do I fix CVE-2025-6530?

m300 firmware: upgrade to newer than 2025-06-11. Exact commands for each OS are on this page.

Q: Is CVE-2025-6530 being exploited?

CVE-2025-6530 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-2025-6530 affect?

CVE-2025-6530 affects m300 firmware. Severity is medium (CVSS 4.8). A vulnerability was found in 70mai M300 up to 20250611. It has been classified as problematic. This affects an unknown part of the file demo.sh of the component Telnet Service. The manipulation leads to denial of service. Access to the loca

Q: How urgent is CVE-2025-6530?

Priority 34/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2025-6530 is a medium-severity flaw (CVSS 4.8) affecting m300 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in 70mai M300 up to 20250611. It has been classified as problematic. This affects an unknown part of the file demo.sh of the component Telnet Service. The manipulation leads to denial of service. Access to the local network is required for this attack. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contac

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-404
Published	2025-06-23
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: 70mai

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

Am I affected?

Timeline

2025-06-23 23:15 UTCPublished CVE record published
2026-06-17 10:02 UTCUpdated Record last modified

70mai m300 firmware UPGRADE

Affected: <= 2025-06-11

Fixed in: newer than 2025-06-11

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-2025-6530?

m300 firmware: upgrade to newer than 2025-06-11. Exact commands for each OS are on this page.

Is CVE-2025-6530 being exploited?

CVE-2025-6530 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-2025-6530 affect?

CVE-2025-6530 affects m300 firmware. Severity is medium (CVSS 4.8). A vulnerability was found in 70mai M300 up to 20250611. It has been classified as problematic. This affects an unknown part of the file demo.sh of the component Telnet Service. The manipulation leads to denial of service. Access to the loca

How urgent is CVE-2025-6530?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2025-6529 HIGH 8.8 UPGRADE A vulnerability was found in 70mai M300 up to 20250611 and classified as critical
CVE-2025-6528 MEDIUM 4.3 UPGRADE A vulnerability has been found in 70mai M300 up to 20250611 and classified as problematic
CVE-2025-6527 LOW 3.1 UPGRADE A vulnerability, which was classified as problematic, was found in 70mai M300 up to 20250611
CVE-2025-6526 LOW 3.1 UPGRADE A vulnerability, which was classified as problematic, has been found in 70mai M300 up to 20250611

References

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