cve.bz

CVE-2021-3499

5.6 mediumEPSS 0.8%

Medium (5.6) in ovn ovn-kubernetes. EPSS 0.8% chance of exploitation in the next 30 days.

A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.

Severity

CVSS 3.1

5.6 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE
CWE-863
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-57v4-m9jx-mh8rGogithub.com/ovn-org/ovn-kubernetes<=0.3.0no fix published

References

Check your stackJSON