CVE-2021-4047: redhat openshift Improper Input Validation
CVSS: 7.5v3.1HighModified
AliasesRHSA-2021:5002
Published 11-04-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-4047 is a high (CVSS 7.5) Improper Input Validation vulnerability in redhat openshift. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.93%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-04-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesAll 2 agree
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.93%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.93% on 19-09-2026
19-09-202619-10-2026
EPSS score0.93%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat3 products
- openshiftEOL4.9
- haproxy< 0:2.2.15-3.el8
- haproxy-debugsource< 0:2.2.15-3.el8
1 vendor · 3 products
