Vulnerability Database

309,234

Total vulnerabilities in the database

CVE-2019-3978

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below allow remote unauthenticated attackers to trigger DNS queries via port 8291. The queries are sent from the router to a server of the attacker's choice. The DNS responses are cached by the router, potentially resulting in cache poisoning

  • Published: Oct 29, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-3978
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:P/A:N

CWEs:

Software From Fixed in
mikrotik / routeros - 6.44.5.x
mikrotik / routeros - 6.45.6.x