How severe is CVE-2025-69430?

CVE-2025-69430 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-69430 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-69430?

CVE-2025-69430 primarily affects Yottamaster Dm2 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-69430?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-69430 have an EU (EUVD) identifier?

Yes. CVE-2025-69430 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206720.

When was CVE-2025-69430 published?

CVE-2025-69430 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2025-69430

CVE-2025-69430 is a medium-severity vulnerability in Yottamaster Dm2 Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206720
Weakness: CWE-59
Affected product: Yottamaster Dm2 Firmware
Published: 2026-02-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-69430?: 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.
How severe is CVE-2025-69430?: CVE-2025-69430 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-69430 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-69430?: CVE-2025-69430 primarily affects Yottamaster Dm2 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-69430?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-69430 have an EU (EUVD) identifier?: Yes. CVE-2025-69430 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206720.
When was CVE-2025-69430 published?: CVE-2025-69430 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://www.notion.so/Yottamaster-Incorrect-Symlink-Follow-2c36cf4e528a8001b37cdad4be7431f8?source=copy_link

Affected products (3)

cpe:2.3:o:yottamaster:dm2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:yottamaster:dm3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:yottamaster:dm200_firmware:*:*:*:*:*:*:*:*

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