---
id: CVE-2026-82770
title: Buffer overflow vulnerability exists in Contec RP-WAH-SR Series
summary: >-
  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.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-120
vendor: 'Contec Co., Ltd.'
product: RP-WAH-SR1
affected:
  - RP-WAH-SR1 < 1.03
  - RP-WAH-SR2 < 1.03
  - RP-WAH-SR12 < 1.02
  - RP-WAH-SR22 < 1.02
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:27:25.623'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82770'
references:
  - url: 'https://jvn.jp/en/vu/JVNVU99009004/'
    label: vultures@jpcert.or.jp
  - url: >-
      https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf
    label: vultures@jpcert.or.jp
tags:
  - nvd
  - cve.org
epss: 0.00655
epssPercentile: 0.4923
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-14T11:08:40.355371Z'
ingestedAt: '2026-09-14T15:23:07.461Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.