---
id: CVE-2026-51990
title: >-
  An issue in Sogou Sogou Input Method < 16.3.0.3498 (fixed in 16.3.0.3498)
  allows a remote attacker to execute arbitrary code via the biz_helper.exe
  component
summary: >-
  An issue in Sogou Sogou Input Method < 16.3.0.3498 (fixed in 16.3.0.3498)
  allows a remote attacker to execute arbitrary code via the biz_helper.exe
  component
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2026-09-16'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:16:41.957'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-51990'
references:
  - url: 'http://sogou.com'
    label: cve@mitre.org
  - url: 'https://www.gendigital.com/blog/insights/research/one-click-backdoor-sogou'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
  - exploit-available
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-17T16:59:41.602388Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/HORKimhab/CVE-2026-51990'
  checkedAt: '2026-09-21T15:29:23.461Z'
exploitAvailable: true
ingestedAt: '2026-09-16T18:01:17.459Z'
epss: 0.00998
epssPercentile: 0.60754
---

## Overview

An issue in Sogou Sogou Input Method < 16.3.0.3498 (fixed in 16.3.0.3498) allows a remote attacker to execute arbitrary code via the biz_helper.exe component

## Remediation

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