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Findings

Vulnerability · CVE-2025-52907

TOTOLINK x6000r_firmware Improper Input Validation

Published Aug 17, 2026 · corrected/updated Aug 17, 2026 · TOTOLINK x6000r_firmware · evidence confidence very high

Improper Input Validation vulnerability in TOTOLINK X6000R allows Command Injection, File Manipulation.This issue affects X6000R: through V9.4.0cu.1360_B20241207.

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-2025-52907 is a unknown public vulnerability record for TOTOLINK x6000r_firmware. 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 TOTOLINK x6000r_firmware is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: TOTOLINK x6000r_firmware. 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 Aug 17, 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. Aug 17, 2026 · VulnCheck KEV

    Detected

    Improper Input Validation vulnerability in TOTOLINK X6000R allows Command Injection, File Manipulation.This issue affects X6000R: through V9.4.0cu.1360_B20241207.

  2. Aug 17, 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 TOTOLINK x6000r_firmwareversion unspecified

Sources

  • FIRST EPSSExploitation probabilityCVE-2025-52907

    30-day exploitation probability 0.9%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2025-52907

    Improper Input Validation vulnerability in TOTOLINK X6000R allows Command Injection, File Manipulation.This issue affects X6000R: through V9.4.0cu.1360_B20241207.

    vulncheck.com

References