CVE-2026-76524
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-10-21 17:19:09.610000
Last modified
2026-10-22 14:17:49.670000
View original CVE JSON
{
"id": "CVE-2026-76524",
"sourceIdentifier": "[email protected]",
"published": "2026-10-21T17:19:09.610",
"lastModified": "2026-10-22T14:17:49.670",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user.\r\n\r\nThis vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Open Source Snort3",
"defaultStatus": "unknown",
"versions": [
{
"version": "3.12.2.0",
"status": "affected"
},
{
"version": "3.1.2.0",
"status": "affected"
},
{
"version": "3.1.3.0",
"status": "affected"
},
{
"version": "3.1.4.0",
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},
{
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{
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{
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{
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{
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{
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{
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{
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"version": "3.1.51.0",
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{
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{
"version": "3.1.53.0",
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{
"version": "3.1.56.0",
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"version": "3.1.57.0",
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{
"version": "3.1.58.0",
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{
"version": "3.1.59.0",
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"version": "3.1.60.0",
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"version": "3.1.61.0",
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{
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{
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{
"version": "3.1.67.0",
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"version": "3.1.70.0",
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"version": "3.1.71.0",
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{
"version": "3.1.72.0",
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{
"version": "3.1.73.0",
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"version": "3.1.81.0",
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"version": "3.1.82.0",
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{
"version": "3.1.83.0",
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{
"version": "3.1.84.0",
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{
"version": "3.2.1.0",
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{
"version": "3.2.2.0",
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{
"version": "3.3.0.0",
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{
"version": "3.3.1.0",
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{
"version": "3.3.2.0",
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{
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{
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{
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{
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{
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{
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"version": "3.7.0.0",
"status": "affected"
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{
"version": "3.9.6.0",
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{
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{
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{
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{
"version": "3.12.1.0",
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{
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{
"version": "3.9.2.0",
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{
"version": "3.6.3.0",
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{
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"status": "affected"
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{
"version": "3.7.1.0",
"status": "affected"
},
{
"version": "3.9.7.0",
"status": "affected"
},
{
"version": "3.7.3.0",
"status": "affected"
},
{
"version": "3.10.1.0",
"status": "affected"
},
{
"version": "3.9.1.0",
"status": "affected"
},
{
"version": "3.11.1.0",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-21T17:12:12.638552Z",
"id": "CVE-2026-76524",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-306"
}
]
}
],
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe",
"source": "[email protected]"
}
]
}