CVE-2025-52890 (GCVE-0-2025-52890)
Vulnerability from cvelistv5 – Published: 2025-06-25 16:51 – Updated: 2025-06-25 17:54
VLAI
EPSS
VEX
Title
Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
Summary
Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-25 17:53 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/lxc/incus/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/lxc/incus/commit/254dfd2483ab8… | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-52890",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T17:53:58.542840Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T17:54:01.093Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "incus",
"vendor": "lxc",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.12, \u003c= 6.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863: Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T16:51:24.279Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
},
{
"name": "https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8"
}
],
"source": {
"advisory": "GHSA-p7fw-vjjm-2rwp",
"discovery": "UNKNOWN"
},
"title": "Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-52890",
"datePublished": "2025-06-25T16:51:24.279Z",
"dateReserved": "2025-06-20T17:42:25.709Z",
"dateUpdated": "2025-06-25T17:54:01.093Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-52890",
"date": "2026-10-27",
"epss": "0.0023",
"percentile": "0.13764"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "incus",
"vendor": "lxc",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.12, \u003c= 6.13"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue."
},
{
"lang": "es",
"value": "Incus es un administrador de contenedores de sistema y m\u00e1quinas virtuales. Al usar una ACL en un dispositivo conectado a un puente, las versiones 6.12 y 6.13 de Incus generan reglas de nftables que omiten parcialmente las opciones de seguridad `security.mac_filtering`, `security.ipv4_filtering` y `security.ipv6_filtering`. Esto puede provocar suplantaci\u00f3n de ARP en el puente y suplantaci\u00f3n completa de otra m\u00e1quina virtual/contenedor en el mismo puente. El commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contiene un parche para este problema."
}
],
"id": "CVE-2025-52890",
"lastModified": "2026-06-17T09:37:13.420",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.7,
"impactScore": 5.8,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-52890",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T17:53:58.542840Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-06-25T17:15:39.370",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-863"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-06-28T07:04:59+00:00",
"cve": "CVE-2025-52890",
"id": "CVE-2025-52890",
"initial_release_date": "2025-06-25T16:51:24.279000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "incus: Incus firewall rule bypass",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-52890.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-52890",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T17:53:58.542840Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T17:53:53.867Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "incus",
"vendor": "lxc",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.12, \u003c= 6.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863: Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T16:51:24.279Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp"
},
{
"name": "https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8"
}
],
"source": {
"advisory": "GHSA-p7fw-vjjm-2rwp",
"discovery": "UNKNOWN"
},
"title": "Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-52890",
"datePublished": "2025-06-25T16:51:24.279Z",
"dateReserved": "2025-06-20T17:42:25.709Z",
"dateUpdated": "2025-06-25T17:54:01.093Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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
Loading timeline…
Loading…
Loading…
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.
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.
Loading…
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.