FKIE_CVE-2026-76454
Vulnerability from fkie_nvd - Published: 2026-10-07 17:16 - Updated: 2026-10-07 17:16
Severity
Summary
A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an unauthenticated, remote attacker to write arbitrary files to the system or cause a DoS condition on an affected application.
This vulnerability is due to improper input validation and a lack of authentication in the management API. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to modify system files or cause a DoS condition.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Cisco License On-Prem",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "7-202001"
},
{
"status": "affected",
"version": "1.1"
},
{
"status": "affected",
"version": "6.3.0"
},
{
"status": "affected",
"version": "8-202004"
},
{
"status": "affected",
"version": "8-202006"
},
{
"status": "affected",
"version": "1.2"
},
{
"status": "affected",
"version": "1.3"
},
{
"status": "affected",
"version": "8-202012"
},
{
"status": "affected",
"version": "8-202010"
},
{
"status": "affected",
"version": "8-202008"
},
{
"status": "affected",
"version": "9-202201"
},
{
"status": "affected",
"version": "8-202102"
},
{
"status": "affected",
"version": "1.4"
},
{
"status": "affected",
"version": "8-202105"
},
{
"status": "affected",
"version": "8-202108"
},
{
"status": "affected",
"version": "8-202112"
},
{
"status": "affected",
"version": "8-202201"
},
{
"status": "affected",
"version": "8-202206"
},
{
"status": "affected",
"version": "8-202212"
},
{
"status": "affected",
"version": "8-202302"
},
{
"status": "affected",
"version": "8-202303"
},
{
"status": "affected",
"version": "8-202304"
},
{
"status": "affected",
"version": "8-202308"
},
{
"status": "affected",
"version": "8-202401"
},
{
"status": "affected",
"version": "8-202404"
},
{
"status": "affected",
"version": "9-202406"
},
{
"status": "affected",
"version": "9-202407"
},
{
"status": "affected",
"version": "9-202410"
},
{
"status": "affected",
"version": "9-202412"
},
{
"status": "affected",
"version": "9-202501"
},
{
"status": "affected",
"version": "9-202502"
},
{
"status": "affected",
"version": "9-202504"
},
{
"status": "affected",
"version": "9-202507"
},
{
"status": "affected",
"version": "9-202510"
},
{
"status": "affected",
"version": "9-202601"
},
{
"status": "affected",
"version": "10-202606"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an unauthenticated, remote attacker to write arbitrary files to the system or cause a DoS condition on an affected application.\r\n\r\nThis vulnerability is due to improper input validation and a lack of authentication in the management API. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to modify system files or cause a DoS condition."
}
],
"id": "CVE-2026-76454",
"lastModified": "2026-10-07T17:16:57.363",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.2,
"source": "psirt@cisco.com",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-76454",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T16:53:51.176135Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-07T17:16:57.363",
"references": [
{
"source": "psirt@cisco.com",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ssm-access-nttb2dhE"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-23"
}
],
"source": "psirt@cisco.com",
"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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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.
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