7.5

CVE-2021-20228: debian debian_linux

Modified
AliasesGHSA-5rrg-rr89-x9mvPYSEC-2021-1UBUNTU-CVE-2021-20228
Published 29-04-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-20228 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 2.04% chance of exploitation in the next 30 days, higher than 81.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.04%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 9
DSA-4950-1MGASA-2021-0131MGASA-2021-0132OPENSUSE-SU-2022:0081-1OPENSUSE-SU-2024:14244-1OPENSUSE-SU-2024:14536-1

Timeline

  1. 29-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in the Ansible Engine 2.9.18, where sensitive info is not masked by default and is not protected by the no_log feature when using the sub-option feature of the basic.py module. This flaw allows an attacker to obtain sensitive information. The highest threat from this vulnerability is to confidentiality.

CVSS metrics

6 scores · 4 sources · 3 versions

EPSS trend

Probability

2.04%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

Decrease -0.02 pp

From 2.06% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat3 products
Debian2 products
  • ansible< 2.10.7+merged+base+2.10.8+dfsg-1
  • debian_linuxEOL10.0
PyPI1 product
  • ansible≥ 2.10.0a1, < 2.10.6rc1 | ≥ 2.9.0a1, < 2.9.18rc1 | < 2.8.19rc1 | < 2.9.19
Ubuntu1 product
  • ansibleAll versions (No fix recorded)

4 vendors · 7 products

References

16 links
Show all 16 references