CVE-2025-69430

Published Feb 3, 2026 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Yottamaster dm200 Firmware
Yottamaster dm2 Firmware
Yottamaster dm3 Firmware
CPEs cpe:2.3:h:yottamaster:dm200:-:*:*:*:*:*:*:*
cpe:2.3:h:yottamaster:dm2:-:*:*:*:*:*:*:*
cpe:2.3:h:yottamaster:dm3:-:*:*:*:*:*:*:*
cpe:2.3:o:yottamaster:dm200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:yottamaster:dm2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:yottamaster:dm3_firmware:*:*:*:*:*:*:*:*
Vendors & Products Yottamaster dm200 Firmware
Yottamaster dm2 Firmware
Yottamaster dm3 Firmware
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-59
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Yottamaster
Yottamaster dm2
Yottamaster dm200
Yottamaster dm3
Vendors & Products Yottamaster
Yottamaster dm2
Yottamaster dm200
Yottamaster dm3
Type Values Removed Values Added
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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Feb 6, 2026, 8:18 PM
Reserved
Jan 9, 2026, 12:00 AM
Status
Analyzed
Published
Feb 3, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:00 AM