An authenticated attacker can execute arbitrary commands as root in Terramaster F4-210…
Priority MEDIUM 43Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An authenticated attacker can execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) by injecting a maliciously crafted input in the request through /tos/index.php?app/hand_app.
Why it matters now
EPSS 0.02483 84th 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
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:terra-master:tos:4.2.15-2107141517:*:*:*:*:*:*:* | 4.2.15-2107141517 | Vulnerable | TerraMaster |
| cpe:2.3:h:terra-master:f2-210:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TerraMaster |
| cpe:2.3:h:terra-master:f4-210:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TerraMaster |
- cpe:2.3:o:terra-master:tos:4.2.15-2107141517:*:*:*:*:*:*:* Versions 4.2.15-2107141517 Vulnerable ·TerraMaster
- cpe:2.3:h:terra-master:f2-210:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TerraMaster
- cpe:2.3:h:terra-master:f4-210:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TerraMaster
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-45836
- 2026-10-03 Alias added: GHSA-g2h5-m8r4-v3h9
References
More TerraMaster Tos vulnerabilities
- TI-2020-17128 Remote Command Execution (RCE) vulnerability in TerraMaster TOS <= 4.2.06 allow remote… CVSS 3.1CRITICAL 9.8
- TI-2020-12246 TerraMaster TOS before 4.1.29 has Invalid Parameter Checking that leads to code injection… CVSS 3.1CRITICAL 9.8
- TI-2020-17127 Multiple directory traversal vulnerabilities in TerraMaster TOS <= 4.2.06 allow remote… CVSS 3.1CRITICAL 9.8
- TI-2021-20870 It is possible to execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS… CVSS 3.1CRITICAL 9.8
- TI-2021-20872 It is possible to execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS… CVSS 3.1CRITICAL 9.8
- TI-2021-20873 In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign… CVSS 3.1HIGH 8.1
Sources
- CVE-2021-45836 · CVE Program
- CVE-2021-45836 · NVD
- FIRST EPSS
- GHSA-g2h5-m8r4-v3h9 · 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