CVE-2025-6529: 70mai M300 · Use of Default Credentials
Affects 70mai M300Source CVE Database V5
Public exploit available · CVSS 8.7 High.
Data as of 26 Oct 2026, 15:59 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 58% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 23 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| 70mai M300 | Affected
| Fixed in– |
AI-suggested
To mitigate this vulnerability effectively, European organizations should implement the following specific measures: 1) Immediately isolate 70mai M300 devices on segmented VLANs or dedicated IoT networks with strict access controls to prevent unauthorized local network access. 2) Disable the Telnet service on the devices if possible, or block Telnet ports (typically TCP 23) at network firewalls and switches to prevent access. 3) Monitor local network traffic for unusual Telnet connection attempts or unauthorized access patterns targeting these devices. 4) Enforce strict network access policies, including disabling guest network access to internal segments where these devices reside. 5) If device replacement is feasible, consider migrating to alternative products with active vendor support and no known vulnerabilities. 6) Maintain an inventory of all 70mai M300 devices to ensure full visibility and control. 7) Engage with the vendor for updates or patches, and subscribe to threat intelligence feeds for emerging exploit information. 8) Implement network intrusion detection systems (NIDS) tuned to detect Telnet-based attacks and anomalous behavior. These measures go beyond generic advice by focusing on network segmentation, service disabling, and active monitoring tailored to the specific vulnerability and device context.
Description
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.