5.3

CVE-2021-20333: mongodb inc mongodb server Improper Output Neutralization for Logs

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-20333
Published 23-07-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-20333 is a medium (CVSS 5.3) Improper Output Neutralization for Logs vulnerability in mongodb inc mongodb server. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 69.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.30%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 23-07-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Sending specially crafted commands to a MongoDB Server may result in artificial log entries being generated or for log entries to be split. This issue affects MongoDB Server v3.6 versions prior to 3.6.20; MongoDB Server v4.0 versions prior to 4.0.21 and MongoDB Server v4.2 versions prior to 4.2.10.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.30%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

+0.03 pp

From 1.27% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (jira.mongodb.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mongodb1 product
  • mongodb≥ 3.6.0, < 3.6.20 | ≥ 4.0.0, < 4.0.21 | ≥ 4.2.0, < 4.2.10
Mongodb inc1 product
  • mongodb server≥ 3.6, < 3.6.20 | ≥ 4.0, < 4.0.21 | ≥ 4.2, < 4.2.10
Ubuntu1 product
  • mongodbAll versions (No fix recorded)

3 vendors · 3 products

References

3 links