7.5

CVE-2019-3978: mikrotik routeros

CVSS: 7.5v3.1HighModified
Published 28-10-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-3978 is a high (CVSS 7.5) vulnerability in mikrotik routeros. EPSS estimates a 10.27% chance of exploitation in the next 30 days, higher than 95.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
10.27%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 28-10-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

10.27%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

0.00 pp

From 10.27% on 21-09-2026

21-09-202621-10-2026
EPSS score
10.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaseremotehardwareUnverified

    MikroTik RouterOS 6.45.6 - DNS Cache Poisoning

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Mikrotik1 product

1 vendor · 1 product

References

2 links