FKIE_CVE-2021-22126
Vulnerability from fkie_nvd - Published: 2025-03-17 14:15 - Updated: 2026-06-17 03:36
Severity
Summary
A use of hard-coded password vulnerability in FortiWLC version 8.5.2 and below, version 8.4.8 and below, version 8.3.3 to 8.3.2, version 8.2.7 to 8.2.6 may allow a local, authenticated attacker to connect to the managed Access Point (Meru AP and FortiAP-U) as root using the default hard-coded username and password.
References
| URL | Tags | ||
|---|---|---|---|
| psirt@fortinet.com | https://fortiguard.fortinet.com/psirt/FG-IR-20-147 | Vendor Advisory |
{
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:fortinet:fortiwlc:8.5.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:*",
"cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "FortiWLC",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "8.5.2",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.8",
"status": "affected",
"version": "8.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.2",
"status": "affected",
"version": "8.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.3.3",
"status": "affected",
"version": "8.3.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.2.7",
"status": "affected",
"version": "8.2.6",
"versionType": "semver"
}
]
}
],
"source": "psirt@fortinet.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*",
"matchCriteriaId": "72490572-39E2-4C8F-8542-3BBDEAA5613D",
"versionEndExcluding": "8.5.3",
"versionStartIncluding": "8.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:*",
"matchCriteriaId": "0F711F5C-A695-4665-ADAE-81C2989F128A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:*",
"matchCriteriaId": "21CF6A81-992D-4980-94BA-9416E5D1BD13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:*",
"matchCriteriaId": "28C337BE-93A1-4AC4-87D3-4F620A05AF1B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:*",
"matchCriteriaId": "A0BAFB6C-FAF8-4157-B84A-30B8735A6492",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A use of hard-coded password vulnerability in FortiWLC version 8.5.2 and below, version 8.4.8 and below, version 8.3.3 to 8.3.2, version 8.2.7 to 8.2.6 may allow a local, authenticated attacker to connect to the managed Access Point (Meru AP and FortiAP-U) as root using the default hard-coded username and password."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el uso de contrase\u00f1a codificada de forma r\u00edgida en FortiWLC versi\u00f3n 8.5.2 y anteriores, versi\u00f3n 8.4.8 y anteriores, versi\u00f3n 8.3.3 a 8.3.2, versi\u00f3n 8.2.7 a 8.2.6 puede permitir que un atacante local autenticado se conecte al punto de acceso administrado (Meru AP y FortiAP-U) como root usando el nombre de usuario y la contrase\u00f1a codificados de forma r\u00edgida predeterminados."
}
],
"id": "CVE-2021-22126",
"lastModified": "2026-06-17T03:36:39.700",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.9,
"source": "psirt@fortinet.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-22126",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-18T03:55:17.682980Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-03-17T14:15:17.067",
"references": [
{
"source": "psirt@fortinet.com",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-20-147"
}
],
"sourceIdentifier": "psirt@fortinet.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-798"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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