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Findings

CVE-2018-10562

Dasan GPON Routers Command Injection Vulnerability

Published May 3, 2018 · updated Jun 16, 2026 · dasannetworks gpon router firmware

An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.

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. May 3, 2018 · Catalog

    Detected

    An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.

  2. Mar 31, 2022 · CISA KEV

    Known exploited

    The impacted product is end-of-life and should be disconnected if still in use.

  3. Apr 21, 2022 · CISA KEV

    Remediation due

    The impacted product is end-of-life and should be disconnected if still in use.

  4. Jun 16, 2026 · Catalog

    Updated

    An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.

Required action

The impacted product is end-of-life and should be disconnected if still in use.

CISA due date Apr 21, 2022

Affected

  • cpe dasannetworks/gpon router firmwareversion unspecified
  • vendor Dasan Gigabit Passive Optical Network (GPON) Routersversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2018-10562

    Dasan GPON Routers contain an authentication bypass vulnerability. When combined with CVE-2018-10561, exploitation can allow an attacker to perform remote code execution.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2018-10562

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-10562

    30-day exploitation probability 99.9%

    first.org
  • Exploit DatabasePublic exploit reference44576

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2018-10562

    An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, i

    nvd.nist.gov

References