FKIE_CVE-2026-20042
Vulnerability from fkie_nvd - Published: 2026-04-01 17:28 - Updated: 2026-06-17 10:16
Severity
Summary
A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information.
This vulnerability exists because authentication details are included in the encrypted backup files. An attacker with a valid backup file and encryption password from an affected device could decrypt the backup file. The attacker could then use the authentication details in the backup file to access internal-only APIs on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Cisco Nexus Dashboard",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "1.1(3e)"
},
{
"status": "affected",
"version": "1.1(3c)"
},
{
"status": "affected",
"version": "1.1(3d)"
},
{
"status": "affected",
"version": "1.1(0d)"
},
{
"status": "affected",
"version": "1.1(2i)"
},
{
"status": "affected",
"version": "2.0(1b)"
},
{
"status": "affected",
"version": "1.1(2h)"
},
{
"status": "affected",
"version": "1.1(0c)"
},
{
"status": "affected",
"version": "1.1(3f)"
},
{
"status": "affected",
"version": "2.1(1d)"
},
{
"status": "affected",
"version": "2.1(1e)"
},
{
"status": "affected",
"version": "2.0(2g)"
},
{
"status": "affected",
"version": "2.0(2h)"
},
{
"status": "affected",
"version": "2.1(2d)"
},
{
"status": "affected",
"version": "2.0(1d)"
},
{
"status": "affected",
"version": "2.2(1h)"
},
{
"status": "affected",
"version": "2.2(1e)"
},
{
"status": "affected",
"version": "2.2(2d)"
},
{
"status": "affected",
"version": "2.1(2f)"
},
{
"status": "affected",
"version": "2.3(1c)"
},
{
"status": "affected",
"version": "2.3(2b)"
},
{
"status": "affected",
"version": "2.3(2c)"
},
{
"status": "affected",
"version": "2.3(2d)"
},
{
"status": "affected",
"version": "2.3(2e)"
},
{
"status": "affected",
"version": "3.0(1f)"
},
{
"status": "affected",
"version": "3.0(1i)"
},
{
"status": "affected",
"version": "3.1(1k)"
},
{
"status": "affected",
"version": "3.1(1l)"
},
{
"status": "affected",
"version": "3.2(1e)"
},
{
"status": "affected",
"version": "3.2(1i)"
},
{
"status": "affected",
"version": "3.3(1a)"
},
{
"status": "affected",
"version": "3.3(1b)"
},
{
"status": "affected",
"version": "3.3(2b)"
},
{
"status": "affected",
"version": "4.0(1i)"
},
{
"status": "affected",
"version": "3.3(2g)"
},
{
"status": "affected",
"version": "3.2(2f)"
},
{
"status": "affected",
"version": "3.2(2g)"
},
{
"status": "affected",
"version": "3.2(2m)"
},
{
"status": "affected",
"version": "3.1(1n)"
},
{
"status": "affected",
"version": "4.1(1g)"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information.\r\n\r\nThis vulnerability exists because authentication details are included in the encrypted backup files. An attacker with a valid backup file and encryption password from an affected device could decrypt the backup file. The attacker could then use the authentication details in the backup file to access internal-only APIs on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user."
}
],
"id": "CVE-2026-20042",
"lastModified": "2026-06-17T10:16:57.867",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 5.2,
"source": "psirt@cisco.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20042",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-04-01T17:28:26.173",
"references": [
{
"source": "psirt@cisco.com",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nd-cbid-5YqkOSHu"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-295"
}
],
"source": "psirt@cisco.com",
"type": "Secondary"
}
]
}
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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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