Weintek cMT3000 HMI Web CGI Stack-based Buffer Overflow
Priority MEDIUM 51CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
In Weintek's cMT3000 HMI Web CGI device, the cgi-bin codesys.cgi contains a stack-based buffer overflow, which could allow an anonymous attacker to hijack control flow and bypass login authentication.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01107 66th 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
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| Weintek | cMT-FHD | up to 20210210 | — | No fix listed | CNA |
| Weintek | cMT-HDM | up to 20210204 | — | No fix listed | CNA |
| Weintek | cMT3071 | up to 20210218 | — | No fix listed | CNA |
| Weintek | cMT3072 | up to 20210218 | — | No fix listed | CNA |
| Weintek | cMT3103 | up to 20210218 | — | No fix listed | CNA |
| Weintek | cMT3090 | up to 20210218 | — | No fix listed | CNA |
| Weintek | cMT3151 | up to 20210218 | — | No fix listed | CNA |
- cMT-FHD VendorWeintek Affected up to 20210210 Fixed in — No fix listed CNA
- cMT-HDM VendorWeintek Affected up to 20210204 Fixed in — No fix listed CNA
- cMT3071 VendorWeintek Affected up to 20210218 Fixed in — No fix listed CNA
- cMT3072 VendorWeintek Affected up to 20210218 Fixed in — No fix listed CNA
- cMT3103 VendorWeintek Affected up to 20210218 Fixed in — No fix listed CNA
- cMT3090 VendorWeintek Affected up to 20210218 Fixed in — No fix listed CNA
- cMT3151 VendorWeintek Affected up to 20210218 Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:weintek:cmt-fhd_firmware:*:*:*:*:*:*:*:* | before 20210212 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt-fhd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
| cpe:2.3:o:weintek:cmt-hdm_firmware:*:*:*:*:*:*:*:* | before 20210206 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt-hdm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
| cpe:2.3:o:weintek:cmt3071_firmware:*:*:*:*:*:*:*:* | before 20210220 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt3071:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
| cpe:2.3:o:weintek:cmt3072_firmware:*:*:*:*:*:*:*:* | before 20210220 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt3072:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
| cpe:2.3:o:weintek:cmt3090_firmware:*:*:*:*:*:*:*:* | before 20210220 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt3090:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
- cpe:2.3:o:weintek:cmt-fhd_firmware:*:*:*:*:*:*:*:* Versions before 20210212 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt-fhd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
- cpe:2.3:o:weintek:cmt-hdm_firmware:*:*:*:*:*:*:*:* Versions before 20210206 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt-hdm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
- cpe:2.3:o:weintek:cmt3071_firmware:*:*:*:*:*:*:*:* Versions before 20210220 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt3071:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
- cpe:2.3:o:weintek:cmt3072_firmware:*:*:*:*:*:*:*:* Versions before 20210220 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt3072:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
- cpe:2.3:o:weintek:cmt3090_firmware:*:*:*:*:*:*:*:* Versions before 20210220 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt3090:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:weintek:cmt3103_firmware:*:*:*:*:*:*:*:* | before 20210220 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt3103:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
| cpe:2.3:o:weintek:cmt3151_firmware:*:*:*:*:*:*:*:* | before 20210220 | Vulnerable | Weintek |
| cpe:2.3:h:weintek:cmt3151:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Weintek |
- cpe:2.3:o:weintek:cmt3103_firmware:*:*:*:*:*:*:*:* Versions before 20210220 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt3103:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
- cpe:2.3:o:weintek:cmt3151_firmware:*:*:*:*:*:*:*:* Versions before 20210220 Vulnerable ·Weintek
- cpe:2.3:h:weintek:cmt3151:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Weintek
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-43492
- 2026-10-03 Alias added: GHSA-6gp7-g3rx-2cq6
References
More Weintek Cmt-fhd Firmware vulnerabilities
- TI-2021-08933 Weintek EasyWeb cMT Code Injection CVSS 3.1CRITICAL 10.0
- TI-2023-19957 Weintek cMT3000 HMI Web CGI Stack-based Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2021-08931 Weintek EasyWeb cMT Improper Access Control CVSS 3.1CRITICAL 9.8
- TI-2021-08930 Weintek EasyWeb cMT Cross-site Scripting CVSS 3.1CRITICAL 9.4
- TI-2023-21024 Weintek cMT3000 HMI Web CGI OS Command Injection CVSS 3.1HIGH 8.8
Sources
- CVE-2023-43492 · CVE Program
- CVE-2023-43492 · NVD
- FIRST EPSS
- GHSA-6gp7-g3rx-2cq6 · 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