The affected TBox RTUs generate software security tokens using insufficient entropy.
Priority LOW 27CWE-331Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The affected TBox RTUs generate software security tokens using insufficient entropy. The random seed used to generate the software tokens is not initialized correctly, and other parts of the token are generated using predictable time-based values. An attacker with this knowledge could successfully brute force the token and authenticate themselves.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00511 43rd 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
- No
- 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 |
|---|---|---|---|---|---|
| Ovarro | TBox MS-CPU32 | up to 1.50.598 | — | No fix listed | CNA |
| Ovarro | TBox MS-CPU32-S2 | up to 1.50.598 | — | No fix listed | CNA |
| Ovarro | TBox LT2 | up to 1.50.598 | — | No fix listed | CNA |
| Ovarro | TBox TG2 | up to 1.50.598 | — | No fix listed | CNA |
| Ovarro | TBox RM2 | up to 1.50.598 | — | No fix listed | CNA |
- TBox MS-CPU32 VendorOvarro Affected up to 1.50.598 Fixed in — No fix listed CNA
- TBox MS-CPU32-S2 VendorOvarro Affected up to 1.50.598 Fixed in — No fix listed CNA
- TBox LT2 VendorOvarro Affected up to 1.50.598 Fixed in — No fix listed CNA
- TBox TG2 VendorOvarro Affected up to 1.50.598 Fixed in — No fix listed CNA
- TBox RM2 VendorOvarro Affected up to 1.50.598 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ovarro:tbox_ms-cpu32_firmware:*:*:*:*:*:*:*:* | up to 1.50.598 | Vulnerable | Ovarro |
| cpe:2.3:h:ovarro:tbox_ms-cpu32:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ovarro |
| cpe:2.3:o:ovarro:tbox_ms-cpu32-s2_firmware:*:*:*:*:*:*:*:* | up to 1.50.598 | Vulnerable | Ovarro |
| cpe:2.3:h:ovarro:tbox_ms-cpu32-s2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ovarro |
| cpe:2.3:o:ovarro:tbox_lt2_firmware:*:*:*:*:*:*:*:* | up to 1.50.598 | Vulnerable | Ovarro |
| cpe:2.3:h:ovarro:tbox_lt2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ovarro |
| cpe:2.3:o:ovarro:tbox_tg2_firmware:*:*:*:*:*:*:*:* | up to 1.50.598 | Vulnerable | Ovarro |
| cpe:2.3:h:ovarro:tbox_tg2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ovarro |
| cpe:2.3:o:ovarro:tbox_rm2_firmware:*:*:*:*:*:*:*:* | up to 1.50.598 | Vulnerable | Ovarro |
| cpe:2.3:h:ovarro:tbox_rm2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ovarro |
- cpe:2.3:o:ovarro:tbox_ms-cpu32_firmware:*:*:*:*:*:*:*:* Versions up to 1.50.598 Vulnerable ·Ovarro
- cpe:2.3:h:ovarro:tbox_ms-cpu32:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ovarro
- cpe:2.3:o:ovarro:tbox_ms-cpu32-s2_firmware:*:*:*:*:*:*:*:* Versions up to 1.50.598 Vulnerable ·Ovarro
- cpe:2.3:h:ovarro:tbox_ms-cpu32-s2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ovarro
- cpe:2.3:o:ovarro:tbox_lt2_firmware:*:*:*:*:*:*:*:* Versions up to 1.50.598 Vulnerable ·Ovarro
- cpe:2.3:h:ovarro:tbox_lt2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ovarro
- cpe:2.3:o:ovarro:tbox_tg2_firmware:*:*:*:*:*:*:*:* Versions up to 1.50.598 Vulnerable ·Ovarro
- cpe:2.3:h:ovarro:tbox_tg2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ovarro
- cpe:2.3:o:ovarro:tbox_rm2_firmware:*:*:*:*:*:*:*:* Versions up to 1.50.598 Vulnerable ·Ovarro
- cpe:2.3:h:ovarro:tbox_rm2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ovarro
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-36610
- 2026-10-03 Alias added: GHSA-mp27-67w3-v3v9
References
More Ovarro Tbox Lt2 Firmware vulnerabilities
- TI-2023-18433 The affected TBox RTUs run OpenVPN with root privileges and can run user defined… CVSS 3.1HIGH 7.2
- TI-2023-18431 Missing authorization in Ovarro TBox RM2 CVSS 3.1MEDIUM 5.3
- TI-2023-18435 Improper authorization in Ovarro TBox MS-CPU32 CVSS 3.1MEDIUM 6.5
- TI-2023-03175 Cleartext storage of sensitive information in Ovarro TBox MS-CPU32 CVSS 3.1MEDIUM 6.5
- TI-2023-18432 The affected TBox RTUs store hashed passwords using MD5 encryption, which is an insecure encryption algorithm. CVSS 3.1MEDIUM 6.5
Sources
- CVE-2023-36610 · CVE Program
- CVE-2023-36610 · NVD
- FIRST EPSS
- GHSA-mp27-67w3-v3v9 · 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