6.5

CVE-2020-20247: mikrotik routeros Out-of-bounds Write

CVSS: 6.5v3.1MediumModified
Published 03-05-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-20247 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in mikrotik routeros. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-05-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Mikrotik RouterOs before 6.46.5 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/traceroute process. An authenticated remote attacker can cause a Denial of Service due via the loop counter variable.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.08% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mikrotik1 product

1 vendor · 1 product

References

1 links