CVE-2020-20225: mikrotik routeros Reachable Assertion
CVSS: 6.5v3.1MediumModified
Published 07-07-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-20225 is a medium (CVSS 6.5) Reachable Assertion vulnerability in mikrotik routeros. EPSS estimates a 2.04% chance of exploitation in the next 30 days, higher than 80.9% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
2.04%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 07-07-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /nova/bin/user process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.04%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.04% on 21-09-2026
21-09-202621-10-2026
EPSS score2.04%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mikrotik1 product
- routeros< 6.47
1 vendor · 1 product