CVE-2025-6529: A vulnerability was found in 70mai M300 up to 20250611 and classified as critical

Q: How do I fix CVE-2025-6529?

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

Q: Is CVE-2025-6529 being exploited?

CVE-2025-6529 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-2025-6529 affect?

CVE-2025-6529 affects m300 firmware. Severity is high (CVSS 8.8). A vulnerability was found in 70mai M300 up to 20250611 and classified as critical. Affected by this issue is some unknown functionality of the component Telnet Service. The manipulation leads to use of default credentials. The attack needs

Q: How urgent is CVE-2025-6529?

Priority 50/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2025-6529 is a high-severity flaw (CVSS 8.8) 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 and classified as critical. Affected by this issue is some unknown functionality of the component Telnet Service. The manipulation leads to use of default credentials. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-1392
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-2025-6529?

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

Is CVE-2025-6529 being exploited?

CVE-2025-6529 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-2025-6529 affect?

CVE-2025-6529 affects m300 firmware. Severity is high (CVSS 8.8). A vulnerability was found in 70mai M300 up to 20250611 and classified as critical. Affected by this issue is some unknown functionality of the component Telnet Service. The manipulation leads to use of default credentials. The attack needs

How urgent is CVE-2025-6529?

Priority 50/100. High severity; Public exploit reference

Related CVEs

CVE-2025-6530 MEDIUM 4.8 UPGRADE A vulnerability was found in 70mai M300 up to 20250611
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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