Missing authentication in I-O DATA DEVICE, INC. HDL-TC1
Priority LOW 37CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Missing authentication for critical function issue exists in I-O DATA network attached hard disk 'HDL-T Series' firmware Ver.1.21 and earlier. If exploited, a remote unauthenticated attacker may change the product settings.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| I-O DATA DEVICE, INC. | HDL-TC1 | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-TC500 | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T1NV | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T1WH | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T2NV | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T2WH | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T3NV | Ver.1.21 and earlier | — | No fix listed | CNA |
| I-O DATA DEVICE, INC. | HDL-T3WH | Ver.1.21 and earlier | — | No fix listed | CNA |
- HDL-TC1 VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-TC500 VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T1NV VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T1WH VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T2NV VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T2WH VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T3NV VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
- HDL-T3WH VendorI-O DATA DEVICE, INC. Affected Ver.1.21 and earlier Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-32738
- 2026-10-03 Alias added: GHSA-hc36-4gf4-49qx
References
More I-O DATA DEVICE, INC. vulnerabilities
- TI-2025-23129 OS command injection in I-O DATA DEVICE, INC. HDL-TC1 CVSS 4.0CRITICAL 9.3
- TI-2016-06558 OS command injection in I-O DATA DEVICE, INC. WFS-SR01 CVSS 3.0CRITICAL 9.8
- TI-2017-01445 Memory corruption in I-O DATA DEVICE, INC. WN-G300R3 CVSS 3.0CRITICAL 9.8
- TI-2024-35228 Inclusion of undocumented features or chicken bits issue exists in UD-LT1 firmware… CVSS 3.0HIGH 7.5
- TI-2025-35943 OS command injection in I-O DATA DEVICE, INC. WN-7D36QR CVSS 4.0HIGH 8.6
- TI-2018-00618 Hard-coded credentials in I-O DATA DEVICE, INC. Multiple I-O DATA network camera products CVSS 3.0HIGH 8.8
Sources
- CVE-2025-32738 · CVE Program
- CVE-2025-32738 · NVD
- FIRST EPSS
- GHSA-hc36-4gf4-49qx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences