FKIE_CVE-2026-20200
Vulnerability from fkie_nvd - Published: 2026-08-05 17:16 - Updated: 2026-10-23 21:10
Severity
Summary
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.
References
Impacted products
{
"affected": [
{
"affectedData": [
{
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"product": "Cisco Unified Computing System (Standalone)",
"vendor": "Cisco",
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{
"status": "affected",
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{
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"version": "4.3(1.230138)"
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{
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"version": "4.3(2.230207)"
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{
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"version": "4.3(2.230270)"
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{
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"version": "4.3(2.240002)"
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{
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"version": "4.3(3.240022)"
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{
"status": "affected",
"version": "4.3(3.240043)"
},
{
"status": "affected",
"version": "4.3(4.240142)"
},
{
"status": "affected",
"version": "4.3(4.240152)"
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{
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"version": "4.3(4.242028)"
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{
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"version": "4.3(4.241063)"
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{
"status": "affected",
"version": "4.3(4.242038)"
},
{
"status": "affected",
"version": "4.3(5.240021)"
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{
"status": "affected",
"version": "4.3(4.242066)"
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{
"status": "affected",
"version": "4.3(5.250001)"
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{
"status": "affected",
"version": "4.3(5.250030)"
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{
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"version": "4.3(6.250040)"
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{
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"version": "4.3(5.250033)"
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{
"status": "affected",
"version": "4.3(6.250044)"
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"version": "4.3(6.250053)"
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{
"status": "affected",
"version": "4.3(4.252001)"
},
{
"status": "affected",
"version": "4.3(4.252002)"
},
{
"status": "affected",
"version": "6.0(1.250127)"
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{
"status": "affected",
"version": "6.0(1.250131)"
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{
"status": "affected",
"version": "4.3(6.250101)"
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{
"status": "affected",
"version": "6.0(1.250174)"
},
{
"status": "affected",
"version": "4.3(6.250117)"
},
{
"status": "affected",
"version": "4.3(5.250043)"
},
{
"status": "affected",
"version": "4.3(6.250039)"
},
{
"status": "affected",
"version": "4.3(5.250045)"
},
{
"status": "affected",
"version": "4.3(6.250060)"
},
{
"status": "affected",
"version": "6.0(1.250130)"
},
{
"status": "affected",
"version": "4.3(4.241014)"
},
{
"status": "affected",
"version": "6.0(1.250192)"
},
{
"status": "affected",
"version": "4.3(6.260003)"
},
{
"status": "affected",
"version": "6.0(1.250194)"
},
{
"status": "affected",
"version": "4.3(6.260017)"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"configurations": [
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"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.\u0026nbsp;\r\n\r\nThis vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.\u0026nbsp;"
},
{
"lang": "es",
"value": "Una vulnerabilidad en la interfaz de gesti\u00f3n basada en web de Cisco IMC podr\u00eda permitir a un atacante remoto autenticado con privilegios bajos ejecutar comandos arbitrarios en el sistema operativo subyacente de un sistema afectado y elevar privilegios a root.\n\nEsta vulnerabilidad se debe a una validaci\u00f3n incorrecta de la entrada proporcionada por el usuario. Un atacante podr\u00eda explotar esta vulnerabilidad introduciendo entradas manipuladas en la interfaz de gesti\u00f3n basada en web del software afectado. Un exploit exitoso podr\u00eda permitir al atacante ejecutar comandos arbitrarios en el sistema operativo subyacente como el usuario root."
}
],
"id": "CVE-2026-20200",
"lastModified": "2026-10-23T21:10:00.157",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "psirt@cisco.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20200",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-05T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-05T17:16:47.180",
"references": [
{
"source": "psirt@cisco.com",
"tags": [
"Vendor Advisory"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-141"
}
],
"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.
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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.
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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.