CVE-2025-32793 (GCVE-0-2025-32793)
Vulnerability from cvelistv5 – Published: 2025-04-21 15:34 – Updated: 2025-04-21 15:48
VLAI
EPSS
VEX
Title
Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters
Summary
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-21 15:48 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cilium/cilium/security/advisor… | x_refsource_CONFIRM |
| https://github.com/cilium/cilium/pull/38592 | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-32793",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-21T15:48:39.310786Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-21T15:48:55.214Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "cilium",
"vendor": "cilium",
"versions": [
{
"status": "affected",
"version": "\u003e= v1.13.0, \u003c v1.15.16"
},
{
"status": "affected",
"version": "\u003e= v1.16.0, \u003c v1.16.9"
},
{
"status": "affected",
"version": "\u003e= v1.17.0, \u003c v1.17.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-319",
"description": "CWE-319: Cleartext Transmission of Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-21T15:34:14.315Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4"
},
{
"name": "https://github.com/cilium/cilium/pull/38592",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cilium/cilium/pull/38592"
}
],
"source": {
"advisory": "GHSA-5vxx-c285-pcq4",
"discovery": "UNKNOWN"
},
"title": "Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-32793",
"datePublished": "2025-04-21T15:34:14.315Z",
"dateReserved": "2025-04-10T12:51:12.281Z",
"dateUpdated": "2025-04-21T15:48:55.214Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-32793",
"date": "2026-11-06",
"epss": "0.00142",
"percentile": "0.03599"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "cilium",
"vendor": "cilium",
"versions": [
{
"status": "affected",
"version": "\u003e= v1.13.0, \u003c v1.15.16"
},
{
"status": "affected",
"version": "\u003e= v1.16.0, \u003c v1.16.9"
},
{
"status": "affected",
"version": "\u003e= v1.17.0, \u003c v1.17.3"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B7E61719-4A1B-478F-8674-7A5340B83B9B",
"versionEndExcluding": "1.15.16",
"versionStartIncluding": "1.13.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
"matchCriteriaId": "560F6A3B-0879-42F9-94B4-80D6036388EE",
"versionEndExcluding": "1.16.9",
"versionStartIncluding": "1.16.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CE716081-3B6C-4F7C-8798-C010904E8BF4",
"versionEndExcluding": "1.17.3",
"versionStartIncluding": "1.17.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue."
},
{
"lang": "es",
"value": "Cilium es una soluci\u00f3n de redes, observabilidad y seguridad con un plano de datos basado en eBPF. Las versiones 1.15.0 a 1.15.15, 1.16.0 a 1.16.8 y 1.17.0 a 1.17.2 son vulnerables al usar el cifrado transparente Wireguard en un cl\u00faster de Cilium. Los paquetes que se originan en un endpoint pueden abandonar el nodo de origen sin cifrado debido a una condici\u00f3n de ejecuci\u00f3n en el procesamiento del tr\u00e1fico por parte de Cilium. Este problema se ha corregido en las versiones 1.15.16, 1.16.9 y 1.17.3. No existen workarounds."
}
],
"id": "CVE-2025-32793",
"lastModified": "2026-06-17T09:12:34.977",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-32793",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-21T15:48:39.310786Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-04-21T16:15:54.753",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/cilium/cilium/pull/38592"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-319"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T18:04:16+00:00",
"cve": "CVE-2025-32793",
"id": "CVE-2025-32793",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-32793.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-32793",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-21T15:48:39.310786Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-21T15:48:43.348Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "cilium",
"vendor": "cilium",
"versions": [
{
"status": "affected",
"version": "\u003e= v1.13.0, \u003c v1.15.16"
},
{
"status": "affected",
"version": "\u003e= v1.16.0, \u003c v1.16.9"
},
{
"status": "affected",
"version": "\u003e= v1.17.0, \u003c v1.17.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-319",
"description": "CWE-319: Cleartext Transmission of Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-21T15:34:14.315Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4"
},
{
"name": "https://github.com/cilium/cilium/pull/38592",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/cilium/cilium/pull/38592"
}
],
"source": {
"advisory": "GHSA-5vxx-c285-pcq4",
"discovery": "UNKNOWN"
},
"title": "Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-32793",
"datePublished": "2025-04-21T15:34:14.315Z",
"dateReserved": "2025-04-10T12:51:12.281Z",
"dateUpdated": "2025-04-21T15:48:55.214Z",
"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.