CVE-2026-82770
Received Received - Intake

Buffer Overflow in Contec RP-WAH-SR Series Web Service

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: JPCERT/CC

Description
Buffer overflow vulnerability exists in Contec RP-WAH-SR Series. If a remote attacker sends a specially crafted request to the product's web service, an arbitrary program may be executed.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-82770
EUVD
EUVD-2026-77223

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
contec rp-wah-sr_series *

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

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Executive Summary

This is a buffer overflow vulnerability in Contec RP-WAH-SR Series devices. A remote attacker can exploit it by sending a specially crafted request to the product's web service, potentially allowing arbitrary program execution.

Impact Analysis

An attacker could exploit this to execute arbitrary code on the device, leading to unauthorized access, data theft, or disruption of service. The high CVSS scores (8.8 v3.1, 8.7 v4.0) indicate severe impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR (data protection) and HIPAA (health data security) requirements. Compliance may be compromised due to potential exposure of sensitive data.

Mitigation Strategies

Immediately isolate affected Contec RP-WAH-SR Series devices from the network to prevent remote exploitation. Disable the web service if not required. Apply vendor patches or updates as soon as they become available. Monitor network traffic for unusual requests targeting the web service port.

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EPSS Chart