FKIE_CVE-2026-16872
Vulnerability from fkie_nvd - Published: 2026-08-19 20:17 - Updated: 2026-08-20 15:54
Severity
Summary
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a stack-based buffer overflow.
References
| URL | Tags | ||
|---|---|---|---|
| psirt@us.ibm.com | https://www.ibm.com/support/pages/node/7283858 | Patch, Vendor Advisory |
{
"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
],
"product": "AIX",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.2"
},
{
"status": "affected",
"version": "7.3"
}
]
},
{
"cpes": [
"cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"
],
"product": "PowerVM VIOS",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "4.1"
}
]
}
],
"source": "psirt@us.ibm.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4A14B743-DDD2-467F-90E7-3431CE35F835",
"versionEndExcluding": "4.1.0.50",
"versionStartIncluding": "4.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "37B446F0-EE99-42EA-99EE-80E517FDCB78",
"versionEndExcluding": "4.1.1.30",
"versionStartIncluding": "4.1.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6245F535-1896-4CC5-8EC9-89C8EF455B8C",
"versionEndExcluding": "4.1.2.20",
"versionStartIncluding": "4.1.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EB84A37D-4C98-44FC-8B9B-E14DA7C88ED5",
"versionEndIncluding": "7.2.5.212",
"versionStartIncluding": "7.2.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EA55F75D-C50C-46D2-93CC-EABB8F49B03F",
"versionEndIncluding": "7.3.2.5",
"versionStartIncluding": "7.3.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B4115FCC-1026-417E-8D30-237B2C90367E",
"versionEndIncluding": "7.3.3.2",
"versionStartIncluding": "7.3.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*",
"matchCriteriaId": "340ADD53-8363-4CDA-AEEB-8DC7CB0088D5",
"versionEndIncluding": "7.3.4.1",
"versionStartIncluding": "7.3.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a stack-based buffer overflow."
}
],
"id": "CVE-2026-16872",
"lastModified": "2026-08-20T15:54:56.433",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "psirt@us.ibm.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-16872",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T12:57:36.463938Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-19T20:17:08.300",
"references": [
{
"source": "psirt@us.ibm.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://www.ibm.com/support/pages/node/7283858"
}
],
"sourceIdentifier": "psirt@us.ibm.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-121"
}
],
"source": "psirt@us.ibm.com",
"type": "Secondary"
}
]
}
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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.
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.
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