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TI-2025-42869 Aliases CVE-2025-69430GHSA-2cqf-mg5g-39xv

An Incorrect Symlink Follow vulnerability exists in multiple Yottamaster NAS devices…

Priority MEDIUM 62CWE-59Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00312 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:yottamaster:dm2_firmware:*:*:*:*:*:*:*:*up to 1.9.12VulnerableYottamaster
cpe:2.3:h:yottamaster:dm2:-:*:*:*:*:*:*:*not specified by NVDRunning onYottamaster
cpe:2.3:o:yottamaster:dm3_firmware:*:*:*:*:*:*:*:*up to 1.9.12VulnerableYottamaster
cpe:2.3:h:yottamaster:dm3:-:*:*:*:*:*:*:*not specified by NVDRunning onYottamaster
cpe:2.3:o:yottamaster:dm200_firmware:*:*:*:*:*:*:*:*up to 1.2.23VulnerableYottamaster
cpe:2.3:h:yottamaster:dm200:-:*:*:*:*:*:*:*not specified by NVDRunning onYottamaster
  • cpe:2.3:o:yottamaster:dm2_firmware:*:*:*:*:*:*:*:* Versions up to 1.9.12 Vulnerable ·Yottamaster
  • cpe:2.3:h:yottamaster:dm2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yottamaster
  • cpe:2.3:o:yottamaster:dm3_firmware:*:*:*:*:*:*:*:* Versions up to 1.9.12 Vulnerable ·Yottamaster
  • cpe:2.3:h:yottamaster:dm3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yottamaster
  • cpe:2.3:o:yottamaster:dm200_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.23 Vulnerable ·Yottamaster
  • cpe:2.3:h:yottamaster:dm200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yottamaster

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-69430
  2. 2026-10-03 Alias added: GHSA-2cqf-mg5g-39xv

References

Exploit 1

  • TI-2025-13002 Yottamaster DM2/DM3/DM200 File Upload path traversal CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences