Hard-coded credentials in Micro Research Ltd. MR-GM2
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-798.
Summary
Use of default credentials vulnerability in MR-GM2 firmware Ver. 3.00.03 and earlier, and MR-GM3 (-D/-K/-S/-DK/-DKS/-M/-W) firmware Ver. 1.03.45 and earlier allows a network-adjacent unauthenticated attacker to intercept wireless LAN communication, when the affected product performs the communication without changing the pre-shared key from the factory-default configuration.
Why it matters now
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 |
|---|---|---|---|---|---|
| Micro Research Ltd. | MR-GM2 | firmware Ver. 3.00.03 and earlier | — | No fix listed | CNA |
| Micro Research Ltd. | MR-GM3 (-D/-K/-S/-DK/-DKS/-M/-W) | firmware Ver. 1.03.45 and earlier | — | No fix listed | CNA |
- MR-GM2 VendorMicro Research Ltd. Affected firmware Ver. 3.00.03 and earlier Fixed in — No fix listed CNA
- MR-GM3 (-D/-K/-S/-DK/-DKS/-M/-W) VendorMicro Research Ltd. Affected firmware Ver. 1.03.45 and earlier Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mrl:mr-gm3-d_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
| cpe:2.3:o:mrl:mr-gm3-k_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-k:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
| cpe:2.3:o:mrl:mr-gm3-s_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
| cpe:2.3:o:mrl:mr-gm3-dks_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-dks:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
| cpe:2.3:o:mrl:mr-gm3-m_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-m:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
- cpe:2.3:o:mrl:mr-gm3-d_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
- cpe:2.3:o:mrl:mr-gm3-k_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-k:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
- cpe:2.3:o:mrl:mr-gm3-s_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
- cpe:2.3:o:mrl:mr-gm3-dks_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-dks:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
- cpe:2.3:o:mrl:mr-gm3-m_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-m:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mrl:mr-gm2_firmware:*:*:*:*:*:*:*:* | before 3.01.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
| cpe:2.3:o:mrl:mr-gm3-w_firmware:*:*:*:*:*:*:*:* | before 1.04.00 | Vulnerable | Mrl |
| cpe:2.3:h:mrl:mr-gm3-w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mrl |
- cpe:2.3:o:mrl:mr-gm2_firmware:*:*:*:*:*:*:*:* Versions before 3.01.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
- cpe:2.3:o:mrl:mr-gm3-w_firmware:*:*:*:*:*:*:*:* Versions before 1.04.00 Vulnerable ·Mrl
- cpe:2.3:h:mrl:mr-gm3-w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mrl
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-45194
- 2026-10-03 Alias added: GHSA-h49v-gcm2-4fm3
References
More Micro Research Ltd. vulnerabilities
- TI-2026-22193 Authentication bypass in Micro Research Ltd. MR-GM5L-S1 CVSS 4.0CRITICAL 9.3
- TI-2026-19711 Hard-coded credentials in Micro Research Ltd. MR-GM5L-S1 CVSS 4.0CRITICAL 9.3
- TI-2026-16918 Code injection in Micro Research Ltd. MR-GM5L-S1 CVSS 4.0HIGH 8.6
Sources
- CVE-2023-45194 · CVE Program
- CVE-2023-45194 · NVD
- FIRST EPSS
- GHSA-h49v-gcm2-4fm3 · 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