Vulnerability Description
An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 (version equal to or prior to V1.9.12), DM3 (version equal to or prior to V1.9.12), and DM200 (version equal to or prior to V1.2.23) that could be exploited by attackers to leak or tamper with the internal file system. Attackers can format a USB drive to ext4, create a symbolic link to its root directory, insert the drive into the NAS device's slot, then access the USB drive's symlink directory mounted on the NAS to obtain all files within the NAS system and tamper with those files.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yottamaster | Dm2 Firmware | <= 1.9.12 |
| Yottamaster | Dm2 | - |
| Yottamaster | Dm3 Firmware | <= 1.9.12 |
| Yottamaster | Dm3 | - |
| Yottamaster | Dm200 Firmware | <= 1.2.23 |
| Yottamaster | Dm200 | - |
Related Weaknesses (CWE)
References
- https://www.notion.so/Yottamaster-Incorrect-Symlink-Follow-2c36cf4e528a8001b37cdExploitThird Party Advisory
FAQ
What is CVE-2025-69430?
CVE-2025-69430 is a vulnerability with a CVSS score of 6.1 (MEDIUM). An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices, including DM2 (version equal to or prior to V1.9.12), DM3 (version equal to or prior to V1.9.12), and DM200 (versi...
How severe is CVE-2025-69430?
CVE-2025-69430 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-69430?
Check the references section above for vendor advisories and patch information. Affected products include: Yottamaster Dm2 Firmware, Yottamaster Dm2, Yottamaster Dm3 Firmware, Yottamaster Dm3, Yottamaster Dm200 Firmware.