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High severity7.5NVD Advisory· Published Oct 29, 2019· Updated Jun 17, 2026

CVE-2019-3978

CVE-2019-3978

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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Mikrotik/Routeros3 versions
    cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:*+ 2 more
    • cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:*range: <=6.45.6
    • cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:*range: <=6.44.5
    • (no CPE)range: <=6.45.6 Stable, <=6.44.5 Long-term
  • RouterOS/RouterOSdescription

Patches

Vulnerability mechanics

References

2

News mentions

0

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