CVE-2023-43757: Elecom Lan-w300n/p Firmware

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Inadequate encryption strength vulnerability in multiple routers provided by ELECOM CO.,LTD. and LOGITEC CORPORATION allows a network-adjacent unauthenticated attacker to guess the encryption key used for wireless LAN communication and intercept the communication. As for the affected products/versions, see the information provided by the vendor under [References] section.

Affected products

  • Elecom Lan-w300n/p Firmware: affected versions not specified
  • Elecom Lan-w300n/rs Firmware: affected versions not specified
  • Elecom Lan-w301nr Firmware: affected versions not specified
  • Elecom Lan-WH300N/DGP Firmware: affected versions not specified
  • Elecom Lan-WH300NDGPE Firmware: affected versions not specified
  • Elecom Wrc-1167ghbk2 Firmware: affected versions not specified
  • Elecom Wrc-1167ghbk Firmware: affected versions not specified
  • Elecom Wrc-1750ghbk-E Firmware: affected versions not specified
  • Elecom Wrc-1750ghbk2-I Firmware: affected versions not specified
  • Elecom Wrc-1750ghbk Firmware: affected versions not specified
  • Elecom Wrc-2533ghbk-I Firmware: affected versions not specified
  • Elecom Wrc-2533ghbk2-T Firmware: affected versions not specified
  • Elecom Wrc-300febk Firmware: affected versions not specified
  • Elecom Wrc-300ghbk2-I Firmware: affected versions not specified
  • Elecom Wrc-300ghbk Firmware: affected versions not specified
  • Elecom Wrc-733febk Firmware: affected versions not specified
  • Elecom Wrc-733ghbk-C Firmware: affected versions not specified
  • Elecom Wrc-733ghbk-I Firmware: affected versions not specified
  • Elecom Wrc-733ghbk Firmware: affected versions not specified
  • Elecom Wrc-f1167acf Firmware: affected versions not specified
  • Elecom Wrc-f300nf Firmware: affected versions not specified
  • Elecom Wrh-150bk Firmware: affected versions not specified
  • Elecom Wrh-150wh Firmware: affected versions not specified
  • Elecom Wrh-300bk-S Firmware: affected versions not specified
  • Elecom Wrh-300bk2-S Firmware: affected versions not specified
  • and 9 more

Published 2023-11-16. Last modified 2026-06-17.