What’s Vulnerable › Vulnerabilities

CVE-2021-4047

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-11 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• Openshift: 4.9

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2027881
• https://bugzilla.redhat.com/show_bug.cgi?id=2027881

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