Stack-based buffer overflow in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Stack-based buffer overflow vulnerability exists in Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*. Receiving a specially crafted request created and sent by a remote attacker may cause a denial-of-service (DoS) condition.
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 |
|---|---|---|---|---|---|
| Contec Co., Ltd. | Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* | before 1.82 | 1.82 | Patch available | CNA |
- Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* VendorContec Co., Ltd. Affected before 1.82 Fixed in 1.82 Patch available CNA
Remediation
- Fix · CNA Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* (Contec Co., Ltd.) Fixed in 1.82
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Contec Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* 1.82
7 records Highest priority Priority LOW 7 LOW
Other records, highest priority first
- TI-2026-57102 Missing authentication in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*Priority LOW 36
- TI-2026-57104 Insufficiently protected credentials in Contec Co., Ltd. Remote I/O Coupler Unit…Priority LOW 35
- TI-2026-57100 Out-of-bounds write in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*Priority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82785
- 2026-10-03 Alias added: GHSA-vvvm-mx34-h72c
References
More Contec Co., Ltd. vulnerabilities
- TI-2022-11821 SolarView Compact ver.6.00 was discovered to contain a command injection vulnerability via conf_mail.php. KEVCVSS 3.1CRITICAL 9.8
- TI-2023-09196 There is a command injection vulnerability in SolarView Compact through 6.00, attackers… CVSS 3.1CRITICAL 9.8
- TI-2022-21852 OS command injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1CRITICAL 9.8
- TI-2023-14072 SolarView Compact <= 6.0 is vulnerable to Insecure Permissions. CVSS 3.1CRITICAL 9.8
- TI-2022-21787 SolarView Compact 4.0 and 5.0 is vulnerable to Unrestricted File Upload via a crafted php file. CVSS 3.1CRITICAL 9.8
- TI-2022-19462 SolarView Compact 6.00 was discovered to contain a command injection vulnerability via network_test.php CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-82785 · CVE Program
- CVE-2026-82785 · NVD
- FIRST EPSS
- GHSA-vvvm-mx34-h72c · 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