Contec Programmable Remote I/O Coupler Unit CPSN-PCB271-S1-041 missing encryption
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.3 | $0-$5k | 0.57 |
Summary
A vulnerability, which was classified as problematic, was found in Contec Remote IO Coupler Unit CPSN-MCB271-*, O Coupler Unit CPSN-EOB471EI- and Programmable Remote IO Coupler Unit CPSN-PCB271-S1-041. Affected is an unknown function. Executing a manipulation can lead to missing encryption. This vulnerability appears as CVE-2026-82783. The attack requires local access. There is no available exploit.
Details
A vulnerability was found in Contec Remote IO Coupler Unit CPSN-MCB271-*, O Coupler Unit CPSN-EOB471EI- and Programmable Remote IO Coupler Unit CPSN-PCB271-S1-041 (affected version not known). It has been declared as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a missing encryption vulnerability. The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. CVE summarizes:
Plaintext storage of a password issue exists in CONPROSYS nano Series . If this vulnerability is exploited, an attacker with physical access to the product may obtain credentials.
The advisory is shared for download at contec.com. This vulnerability was named CVE-2026-82783 since 08/31/2026. The exploitation appears to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Once again VulDB remains the best source for vulnerability data.
Product
Vendor
Name
- O Coupler Unit CPSN-EOB471EI-
- Programmable Remote IO Coupler Unit CPSN-PCB271-S1-041
- Remote IO Coupler Unit CPSN-MCB271-*
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 3.3VulDB Meta Temp Score: 3.3
VulDB Base Score: 2.5
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 4.2
CNA Vector (jpcert): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Missing encryptionCWE: CWE-311 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒
Physical: Yes
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
08/31/2026 CVE reserved09/14/2026 Advisory disclosed
09/14/2026 VulDB entry created
09/14/2026 VulDB entry last update
Sources
Advisory: contec.comStatus: Not defined
CVE: CVE-2026-82783 (🔒)
GCVE (CVE): GCVE-0-2026-82783
GCVE (VulDB): GCVE-100-403468
Entry
Created: 09/14/2026 09:20Changes: 09/14/2026 09:20 (71)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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