When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.
PUBLISHED5.2CWE-122
Problem type
Affected products
Brocade
Fabric OS
< 10.0.1 - AFFECTED
References
GitHub Security Advisories
GHSA-m9v3-m696-8866
When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the...
https://github.com/advisories/GHSA-m9v3-m696-8866When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-87679Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-87679",
"assignerOrgId": "87b297d7-335e-4844-9551-11b97995a791",
"assignerShortName": "brocade",
"dateUpdated": "2026-10-08T13:02:41.706Z",
"dateReserved": "2026-09-08T22:51:12.186Z",
"datePublished": "2026-10-08T00:44:41.384Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "87b297d7-335e-4844-9551-11b97995a791",
"shortName": "brocade",
"dateUpdated": "2026-10-08T00:44:41.384Z"
},
"descriptions": [
{
"lang": "en",
"value": "When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<p>When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.</p>"
}
]
}
],
"affected": [
{
"vendor": "Brocade",
"product": "Fabric OS",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "Brocade FabricOS",
"lessThan": "10.0.1"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-122: Heap-based Buffer Overflow",
"cweId": "CWE-122",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://support.broadcom.com/external/content/SecurityAdvisories/0/39073"
}
],
"impacts": [
{
"capecId": "CAPEC-10",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-10 Buffer Overflow via Environment Variables"
}
]
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"solutions": [
{
"lang": "en",
"value": "Security update is provided in Brocade Fabric OS 10.0.1",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "Security update is provided in Brocade Fabric OS 10.0.1"
}
]
}
]
},
"adp": [
{
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-08T13:02:41.706Z"
},
"title": "CISA ADP Vulnrichment",
"metrics": [
{}
]
}
]
}
}