CVE-2021-34618
Status: ModifiedMedium (6.5)—
A remote denial of service (DoS) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.4.x: All versions; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.48%
- Percentile among all scored CVEs: 39
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2021-34618",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.3,
"accessVector": "ADJACENT_NETWORK",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.5,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security-alert@hpe.com",
"affectedData": [
{
"vendor": "n/a",
"product": "Aruba Instant Access Points",
"versions": [
{
"status": "affected",
"version": "Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 and below"
},
{
"status": "affected",
"version": "Aruba Instant 6.5.x: 6.5.4.18 and below"
},
{
"status": "affected",
"version": "Aruba Instant 8.3.x: 8.3.0.14 and below"
},
{
"status": "affected",
"version": "Aruba Instant 8.4.x: All versions"
},
{
"status": "affected",
"version": "Aruba Instant 8.5.x: 8.5.0.11 and below"
},
{
"status": "affected",
"version": "Aruba Instant 8.6.x: 8.6.0.7 and below"
},
{
"status": "affected",
"version": "Aruba Instant 8.7.x: 8.7.1.1 and below"
}
]
}
]
}
],
"published": "2021-07-19T20:15:08.743",
"references": [
{
"url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt",
"tags": [
"Vendor Advisory"
],
"source": "security-alert@hpe.com"
},
{
"url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A remote denial of service (DoS) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.4.x: All versions; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability."
},
{
"lang": "es",
"value": "Se ha detectado una vulnerabilidad de denegación de servicio (DoS) remota en algunos productos Aruba Instant Access Point (IAP) en versiones: Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 y posteriores; Aruba Instant 6.5.x: 6.5.4.18 y posteriores; Aruba Instant 8.3.x: 8.3.0.14 y posteriores; Aruba Instant 8.4.x: Todas las versiones; Aruba Instant 8.5.x: 8.5.0.11 e inferior; Aruba Instant 8.6.x: 8.6.0.7 e inferior; Aruba Instant 8.7.x: 8.7.1.1 e inferior. Aruba ha publicado parches para Aruba Instant que solucionan esta vulnerabilidad de seguridad"
}
],
"lastModified": "2026-06-17T03:56:14.440",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "71A2CB8D-2ABD-42FB-9BC5-B557EE760DD4",
"versionEndIncluding": "6.4.4.8-4.2.4.18",
"versionStartIncluding": "6.4.0"
},
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E9FA09F6-0F0B-4377-887E-71221A29FCEC",
"versionEndIncluding": "6.5.4.18",
"versionStartIncluding": "6.5.0"
},
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "514796DB-052A-4B25-A80A-2EEAF35FC8EF",
"versionEndIncluding": "8.3.0.14",
"versionStartIncluding": "8.3.0"
},
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "229C9025-98BC-49E3-BF1B-8B066E4D430B",
"versionEndIncluding": "8.5.0.11",
"versionStartIncluding": "8.4.0"
},
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FAAE46EF-A87B-4870-BE44-D43035588AA5",
"versionEndIncluding": "8.6.0.7",
"versionStartIncluding": "8.6.0"
},
{
"criteria": "cpe:2.3:h:aruba:aruba_instant:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16A0DDA5-960C-4C51-A941-47D3B793EC4C",
"versionEndIncluding": "8.7.1.1",
"versionStartIncluding": "8.7.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-alert@hpe.com"
}