Improper authentication in GOT2000 series GT27 model
Priority LOW 35CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Improper authentication vulnerability in GOT2000 series GT27 model VNC server versions 01.39.010 and prior, GOT2000 series GT25 model VNC server versions 01.39.010 and prior, GOT2000 series GT21 model GT2107-WTBD VNC server versions 01.40.000 and prior, GOT2000 series GT21 model GT2107-WTSD VNC server versions 01.40.000 and prior, GOT SIMPLE series GS21 model GS2110-WTBD-N VNC server versions 01.40.000 and prior and GOT SIMPLE series GS21 model GS2107-WTBD-N VNC server versions 01.40.000 and prior allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used.
Why it matters now
EPSS 0.01275 70th percentileScored 2026-11-07
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 |
|---|---|---|---|---|---|
| — | GOT2000 series GT27 model | VNC server version 01.39.010 and prior | — | No fix listed | CNA |
| — | GOT2000 series GT25 model | VNC server version 01.39.010 and prior | — | No fix listed | CNA |
| — | GOT2000 series GT21 model GT2107-WTBD | VNC server version 01.40.000 and prior | — | No fix listed | CNA |
| — | GOT2000 series GT21 model GT2107-WTSD | VNC server version 01.40.000 and prior | — | No fix listed | CNA |
| — | GOT SIMPLE series GS21 model GS2110-WTBD-N | VNC server version 01.40.000 and prior | — | No fix listed | CNA |
| — | GOT SIMPLE series GS21 model GS2107-WTBD-N | VNC server version 01.40.000 and prior | — | No fix listed | CNA |
- GOT2000 series GT27 model Vendor— Affected VNC server version 01.39.010 and prior Fixed in — No fix listed CNA
- GOT2000 series GT25 model Vendor— Affected VNC server version 01.39.010 and prior Fixed in — No fix listed CNA
- GOT2000 series GT21 model GT2107-WTBD Vendor— Affected VNC server version 01.40.000 and prior Fixed in — No fix listed CNA
- GOT2000 series GT21 model GT2107-WTSD Vendor— Affected VNC server version 01.40.000 and prior Fixed in — No fix listed CNA
- GOT SIMPLE series GS21 model GS2110-WTBD-N Vendor— Affected VNC server version 01.40.000 and prior Fixed in — No fix listed CNA
- GOT SIMPLE series GS21 model GS2107-WTBD-N Vendor— Affected VNC server version 01.40.000 and prior Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware:*:*:*:*:*:*:*:* | up to 01.39.010 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:got2000_gt27:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
| cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware:*:*:*:*:*:*:*:* | up to 01.39.010 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:got2000_gt25:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
| cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:* | up to 01.40.000 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
| cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:* | up to 01.40.000 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
| cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:* | up to 01.40.000 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
- cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware:*:*:*:*:*:*:*:* Versions up to 01.39.010 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:got2000_gt27:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
- cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware:*:*:*:*:*:*:*:* Versions up to 01.39.010 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:got2000_gt25:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
- cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:* Versions up to 01.40.000 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
- cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:* Versions up to 01.40.000 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
- cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:* Versions up to 01.40.000 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:* | up to 01.40.000 | Vulnerable | Mitsubishi Electric Europe B.V. |
| cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Mitsubishi Electric Europe B.V. |
- cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:* Versions up to 01.40.000 Vulnerable ·Mitsubishi Electric Europe B.V.
- cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Mitsubishi Electric Europe B.V.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20590
- 2026-10-03 Alias added: GHSA-p459-vh9f-cr64
References
More Mitsubishi Electric Europe B.V. Got2000 Gt25 Firmware vulnerabilities
- TI-2021-03825 Missing synchronization vulnerability in GOT2000 series GT27 model communication driver… CVSS 3.1HIGH 7.5
- TI-2022-19112 Denial-of-Service (DoS) Vulnerability in FTP Server Function on GOT2000 Series CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-20590 · CVE Program
- CVE-2021-20590 · NVD
- FIRST EPSS
- GHSA-p459-vh9f-cr64 · GitHub Advisory Database · CC BY 4.0
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