7.5

CVE-2020-11881: mikrotik routeros Improper Validation of Array Index

CVSS: 7.5v3.1HighModified
Published 14-09-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-11881 is a high (CVSS 7.5) Improper Validation of Array Index vulnerability in mikrotik routeros. EPSS estimates a 3.77% chance of exploitation in the next 30 days, higher than 89.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 14-09-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An array index error in MikroTik RouterOS 6.41.3 through 6.46.5, and 7.x through 7.0 Beta5, allows an unauthenticated remote attacker to crash the SMB server via modified setup-request packets, aka SUP-12964.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.77%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.77% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Cve 2020 11881

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Mikrotik1 product
  • routeros≥ 6.41.3, ≤ 6.46.5 | 7.0:beta3 | 7.0:beta4 | 7.0:beta5

1 vendor · 1 product

References

2 links