CVE-2026-25804

CRITICAL
2026-02-06 [email protected] GHSA-86x4-wp9f-wrr9
9.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Feb 28, 2026 - 00:30 nvd
Patch available
CVE Published
Feb 06, 2026 - 23:15 nvd
CRITICAL 9.1

Tags

Kubernetes Antrea Suse

Description

Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea's network policy priority assignment system has a uint16 arithmetic overflow bug that causes incorrect OpenFlow priority calculations when handling a large numbers of policies with various priority values. This results in potentially incorrect traffic enforcement. This issue has been patched in versions 2.4.3.

Analysis

Antrea Kubernetes networking has an authentication bypass enabling unauthorized access to the Kubernetes network policy infrastructure.

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Remediation

Within 24 hours: Identify all Kubernetes clusters running Antrea and their current versions. Within 7 days: Apply the available vendor patch to all affected Antrea deployments, prioritizing production environments and those handling sensitive workloads. …

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Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +46
POC: 0

Vendor Status

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CVE-2026-25804 vulnerability details – vuln.today
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