Vulnerability-Lookup

CVE-2026-25804 (GCVE-0-2026-25804)

Vulnerability from cvelistv5 – Published: 2026-02-06 22:58 – Updated: 2026-02-09 15:25

Title

Antrea has invalid enforcement order for network policy rules caused by integer overflow

Summary

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.

Severity

8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-09 15:21 UTC

CWE

CWE-287 - Improper Authentication
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8129 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/antrea-io/antrea/security/advi…	x_refsource_CONFIRM
https://github.com/antrea-io/antrea/pull/7496	x_refsource_MISC
https://github.com/antrea-io/antrea/commit/86c4b6…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
antrea-io	antrea	Affected: < 2.3.2 Affected: >= 2.4.0, < 2.4.3	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-25804",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-09T15:21:46.446442Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-09T15:25:44.301Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "antrea",
          "vendor": "antrea-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.4.0, \u003c 2.4.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T22:58:35.041Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9"
        },
        {
          "name": "https://github.com/antrea-io/antrea/pull/7496",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/antrea-io/antrea/pull/7496"
        },
        {
          "name": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"
        }
      ],
      "source": {
        "advisory": "GHSA-86x4-wp9f-wrr9",
        "discovery": "UNKNOWN"
      },
      "title": "Antrea has invalid enforcement order for network policy rules caused by integer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-25804",
    "datePublished": "2026-02-06T22:58:35.041Z",
    "dateReserved": "2026-02-05T19:58:01.641Z",
    "dateUpdated": "2026-02-09T15:25:44.301Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-25804",
      "date": "2026-10-30",
      "epss": "0.00499",
      "percentile": "0.42793"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "antrea",
                "vendor": "antrea-io",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 2.3.2"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 2.4.0, \u003c 2.4.3"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:linuxfoundation:antrea:*:*:*:*:*:kubernetes:*:*",
                    "matchCriteriaId": "395EA656-873E-492A-88A3-D6813376D968",
                    "versionEndExcluding": "2.3.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:linuxfoundation:antrea:*:*:*:*:*:kubernetes:*:*",
                    "matchCriteriaId": "7DB4CD72-9C1A-47E2-BB11-16F803BAE15A",
                    "versionEndExcluding": "2.4.3",
                    "versionStartIncluding": "2.4.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea\u0027s 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."
          },
          {
            "lang": "es",
            "value": "Antrea es una soluci\u00f3n de red de Kubernetes dise\u00f1ada para ser nativa de Kubernetes. Antes de las versiones 2.3.2 y 2.4.3, el sistema de asignaci\u00f3n de prioridad de pol\u00edticas de red de Antrea tiene un error de desbordamiento aritm\u00e9tico uint16 que causa c\u00e1lculos incorrectos de prioridad de OpenFlow al manejar un gran n\u00famero de pol\u00edticas con varios valores de prioridad. Esto resulta en una aplicaci\u00f3n de tr\u00e1fico potencialmente incorrecta. Este problema ha sido parcheado en la versi\u00f3n 2.4.3."
          }
        ],
        "id": "CVE-2026-25804",
        "lastModified": "2026-06-17T10:25:16.257",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.1,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.2,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.0,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "UNREPORTED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "LOW",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-25804",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-09T15:21:46.446442Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-02-06T23:15:55.123",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/antrea-io/antrea/pull/7496"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-287"
              },
              {
                "lang": "en",
                "value": "CWE-770"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-02-08T01:21:44+00:00",
      "cve": "CVE-2026-25804",
      "id": "CVE-2026-25804",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Antrea has invalid enforcement order for network policy rules caused by integer overflow",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25804.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "critical",
      "current_release_date": "2026-03-04T00:26:53Z",
      "cve": "CVE-2026-25804",
      "id": "CVE-2026-25804",
      "initial_release_date": "2026-03-04T00:26:53Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-25804",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-25804.json",
      "version": "2"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-25804",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-02-09T15:21:46.446442Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-02-09T15:21:47.143Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "antrea",
              "vendor": "antrea-io",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 2.3.2"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 2.4.0, \u003c 2.4.3"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea\u0027s 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."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 8,
                "baseSeverity": "HIGH",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U",
                "version": "4.0",
                "vulnAvailabilityImpact": "LOW",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-287",
                  "description": "CWE-287: Improper Authentication",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-770",
                  "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-02-06T22:58:35.041Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9"
            },
            {
              "name": "https://github.com/antrea-io/antrea/pull/7496",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/antrea-io/antrea/pull/7496"
            },
            {
              "name": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"
            }
          ],
          "source": {
            "advisory": "GHSA-86x4-wp9f-wrr9",
            "discovery": "UNKNOWN"
          },
          "title": "Antrea has invalid enforcement order for network policy rules caused by integer overflow"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-25804",
        "datePublished": "2026-02-06T22:58:35.041Z",
        "dateReserved": "2026-02-05T19:58:01.641Z",
        "dateUpdated": "2026-02-09T15:25:44.301Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-25804

Vulnerability from fkie_nvd - Published: 2026-02-06 23:15 - Updated: 2026-06-17 10:25

Severity

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa	Patch
security-advisories@github.com	https://github.com/antrea-io/antrea/pull/7496	Issue Tracking, Patch
security-advisories@github.com	https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9	Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	linuxfoundation	antrea	*
	linuxfoundation	antrea	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "antrea",
          "vendor": "antrea-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.4.0, \u003c 2.4.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxfoundation:antrea:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "395EA656-873E-492A-88A3-D6813376D968",
              "versionEndExcluding": "2.3.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:antrea:*:*:*:*:*:kubernetes:*:*",
              "matchCriteriaId": "7DB4CD72-9C1A-47E2-BB11-16F803BAE15A",
              "versionEndExcluding": "2.4.3",
              "versionStartIncluding": "2.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea\u0027s 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."
    },
    {
      "lang": "es",
      "value": "Antrea es una soluci\u00f3n de red de Kubernetes dise\u00f1ada para ser nativa de Kubernetes. Antes de las versiones 2.3.2 y 2.4.3, el sistema de asignaci\u00f3n de prioridad de pol\u00edticas de red de Antrea tiene un error de desbordamiento aritm\u00e9tico uint16 que causa c\u00e1lculos incorrectos de prioridad de OpenFlow al manejar un gran n\u00famero de pol\u00edticas con varios valores de prioridad. Esto resulta en una aplicaci\u00f3n de tr\u00e1fico potencialmente incorrecta. Este problema ha sido parcheado en la versi\u00f3n 2.4.3."
    }
  ],
  "id": "CVE-2026-25804",
  "lastModified": "2026-06-17T10:25:16.257",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "UNREPORTED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-25804",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-09T15:21:46.446442Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-06T23:15:55.123",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/antrea-io/antrea/pull/7496"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-86X4-WP9F-WRR9

Vulnerability from github – Published: 2026-02-06 22:36 – Updated: 2026-02-07 00:33

Summary

Antrea has invalid enforcement order for network policy rules caused by integer overflow

Details

Impact

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.

If a user creates a large number of Antrea NetworkPolicies (ANP or ACNP) with varying priorities, some rules with lower logical priorities (higher numerical priority values) may take precedence over rules with higher logical priorities (lower numerical priority values). Traffic that should be denied by the configured Antrea NetworkPolicies may end up being allowed, potentially letting an attacker access a sensitive service. Traffic that should be allowed by the configured Antrea NetworkPolicies may end up being denied, breaking applications and potentially opening the door for denial-of-service attacks.

The Antrea NetworkPolicy system comes with support for priority Tiers. Rules defined within a Tier cannot take precedence over rules defined in higher priority Tiers. Some users / roles may only be authorized to define within specific Tiers. This security vulnerability enables such users to intentionally "escape" their Tier and override rules in higher priority Tiers.

Antrea deployments that only use upstream Kubernetes NetworkPolicies - and do not use Antrea NetworkPolicies - are not affected.

Patches

https://github.com/antrea-io/antrea/pull/7496 Antrea v2.5.0 Antrea v2.4.3 Antrea v2.3.2

Workarounds

Antrea deployments that only use upstream Kubernetes NetworkPolicies - and do not use Antrea NetworkPolicies - are not affected.

For users leveraging Antrea NetworkPolicies, there is no way to fix or remediate the vulnerability without upgrading.

Resources

https://gist.github.com/antoninbas/c429cc3e5bb8479ba7ff38fd6fde59d9 https://github.com/antrea-io/antrea/pull/7496 https://github.com/antrea-io/antrea/blob/main/docs/antrea-network-policy.md

Severity

8.0 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "antrea.io/antrea"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "antrea.io/antrea"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "2.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25804"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-06T22:36:29Z",
    "nvd_published_at": "2026-02-06T23:15:55Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nAntrea\u0027s 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.\n\nIf a user creates a large number of Antrea NetworkPolicies (ANP or ACNP) with varying priorities, some rules with lower logical priorities (higher numerical priority values) may take precedence over rules with higher logical priorities (lower numerical priority values). Traffic that should be denied by the configured Antrea NetworkPolicies may end up being allowed, potentially letting an attacker access a sensitive service. Traffic that should be allowed by the configured Antrea NetworkPolicies may end up being denied, breaking applications and potentially opening the door for denial-of-service attacks.\n\nThe Antrea NetworkPolicy system comes with support for priority Tiers. Rules defined within a Tier cannot take precedence over rules defined in higher priority Tiers. Some users / roles may only be authorized to define within specific Tiers. This security vulnerability enables such users to intentionally \"escape\" their Tier and override rules in higher priority Tiers.\n\nAntrea deployments that *only* use upstream Kubernetes NetworkPolicies - and do not use Antrea NetworkPolicies - are not affected.\n\n### Patches\nhttps://github.com/antrea-io/antrea/pull/7496\nAntrea v2.5.0\nAntrea v2.4.3\nAntrea v2.3.2\n\n### Workarounds\n\nAntrea deployments that *only* use upstream Kubernetes NetworkPolicies - and do not use Antrea NetworkPolicies - are not affected.\n\nFor users leveraging Antrea NetworkPolicies, there is no way to fix or remediate the vulnerability without upgrading.\n\n### Resources\n\nhttps://gist.github.com/antoninbas/c429cc3e5bb8479ba7ff38fd6fde59d9\nhttps://github.com/antrea-io/antrea/pull/7496\nhttps://github.com/antrea-io/antrea/blob/main/docs/antrea-network-policy.md",
  "id": "GHSA-86x4-wp9f-wrr9",
  "modified": "2026-02-07T00:33:42Z",
  "published": "2026-02-06T22:36:29Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25804"
    },
    {
      "type": "WEB",
      "url": "https://github.com/antrea-io/antrea/pull/7496"
    },
    {
      "type": "WEB",
      "url": "https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/antoninbas/c429cc3e5bb8479ba7ff38fd6fde59d9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/antrea-io/antrea"
    },
    {
      "type": "WEB",
      "url": "https://github.com/antrea-io/antrea/blob/main/docs/antrea-network-policy.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Antrea has invalid enforcement order for network policy rules caused by integer overflow"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-25804 (GCVE-0-2026-25804)

FKIE_CVE-2026-25804

GHSA-86X4-WP9F-WRR9

Impact

Patches

Workarounds

Resources

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour