CVE-2026-25804
February 06, 2026
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.
Affected Packages
https://github.com/antrea-io/antrea.git (GITHUB):
Affected version(s) >=v0.1.0 <v2.3.2Fix Suggestion:
Update to version v2.3.2https://github.com/antrea-io/antrea.git (GITHUB):
Affected version(s) >=v2.4.0 <v2.4.3Fix Suggestion:
Update to version v2.4.3antrea.io/antrea (GO):
Affected version(s) >=v0.1.0 <v2.3.2Fix Suggestion:
Update to version v2.3.2Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
EPSS
Base Score:
0.02
