CVE-2026-51990

critical

Description

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

References

Exploits
More

https://www.securityweek.com/chinese-hackers-exploit-critical-tencent-software-flaw-for-one-click-code-execution/

https://www.bleepingcomputer.com/news/security/hackers-exploit-tencent-app-flaw-to-deploy-grayrabbit-malware/

https://thehackernews.com/2026/09/china-linked-unc3569-exploited-sogou.html

https://www.gendigital.com/blog/insights/research/one-click-backdoor-sogou

http://sogou.com

Details

Source: Mitre, NVD

Published: 2026-09-16

Updated: 2026-09-22

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H