VULNERABILITY INTELLIGENCE

CVE-2019-3978

CVSS score7.5 HIGH
EPSS probability10.27%
CISA KEVNot currently listed
Published2019-10-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

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

Weakness classification

  • CWE-306: Missing Authentication for Critical Function

Primary references