7.5

CVE-2017-17537: mikrotik routerboard Improper Input Validation

CVSS: 7.5v3.0HighModified
Published 13-12-2017Last modified 16-09-2026
Open JSON

Vulnerability summary

CVE-2017-17537 is a high (CVSS 7.5) Improper Input Validation vulnerability in mikrotik routerboard. EPSS estimates a 1.75% chance of exploitation in the next 30 days, higher than 77.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
1.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 13-12-2017
    PublishedVulnerability first disclosed.
  2. 16-09-2026
    Last modifiedVulnerability information updated.

Description

MikroTik RouterBOARD v6.39.2 and v6.40.5 allows an unauthenticated remote attacker to cause a denial of service by connecting to TCP port 53 and sending data that begins with many '\0' characters, possibly related to DNS.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.75%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.75% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasedoswindowsUnverified

    Sync Breeze Enterprise 10.0.28 - Denial of-Service (PoC)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Mikrotik1 product

1 vendor · 1 product

References

2 links