ZeroDay Findings
Sign inSign up

Findings

Vulnerability · CVE-2026-51990

Sogou Input Method 'biz_helper' Remote Code Execution

Published Sep 10, 2026 · corrected/updated Sep 10, 2026 · Tencent Sogou Input Method · evidence confidence very high

Sogou Input Method contains a chain of three weaknesses that, if successfully exploited, could allow remote code execution. An attacker could exploit this vulnerability by convincing a user to click a specially crafted link.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-51990 is a unknown public vulnerability record for Tencent Sogou Input Method. CISA lists it as known exploited. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Tencent Sogou Input Method is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Tencent Sogou Input Method. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: EPSS 0.9%. CISA lists it as known exploited. Sources contributing to this record: epss, vulncheck_kev. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since Sep 10, 2026. Listed in CISA KEV and VulnCheck KEV.

  • Patch and remediation

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 10, 2026 · VulnCheck KEV

    Detected

    Sogou Input Method contains a chain of three weaknesses that, if successfully exploited, could allow remote code execution. An attacker could exploit this vulnerability by convincing a user to click a specially crafted link.

  2. Sep 10, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected

  • vendor Tencent Sogou Input Methodversion unspecified

Sources

  • FIRST EPSSExploitation probabilityCVE-2026-51990

    30-day exploitation probability 0.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2026-51990

    Sogou Input Method contains a chain of three weaknesses that, if successfully exploited, could allow remote code execution. An attacker could exploit this vulnerability by convincing a user to click a specially crafted link.

    vulncheck.com

References