6.5

CVE-2020-20213: mikrotik routeros Uncontrolled Recursion

CVSS: 6.5v3.1MediumModified
Published 07-07-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-20213 is a medium (CVSS 6.5) Uncontrolled Recursion vulnerability in mikrotik routeros. EPSS estimates a 2.11% chance of exploitation in the next 30 days, higher than 81.6% 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
2.11%
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. 07-07-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Mikrotik RouterOs 6.44.5 (long-term tree) suffers from an stack exhaustion vulnerability in the /nova/bin/net process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.11%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.11% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.11%

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

3 links