CVE-2026-66145
An unauthenticated remote code execution vulnerability was identified in GMS 9.5.1 (Build 9510.1044) and earlier versions which allows remote attacker to read sensitive data and perform arbitrary file write via zipslip.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Base score: 9.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.66%
- Percentile among all scored CVEs: 50
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1190Exploit Public-Facing Applicationinitial access95 % - Primary impact
T1059Command and Scripting Interpreterexecution85 % - Secondary impact
T1005Data from Local Systemcollection90 % - Secondary impact
T1565.001Stored Data Manipulationimpact80 %
Vector CVSS AV:N/PR:N/UI:N indica red sin autenticación (T1190). CWE-94 (RCE) y zipslip permiten ejecución remota (T1059), lectura de datos sensibles (T1005) y escritura arbitraria de archivos (T1565.001).
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-94
References
Raw JSON (NVD)
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{
"id": "CVE-2026-66145",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"id": "CVE-2026-66145",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-08-12T04:00:44.874926Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
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"cvssData": {
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"version": "3.1",
"baseScore": 9.1,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 3.9
}
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},
"affected": [
{
"source": "PSIRT@sonicwall.com",
"affectedData": [
{
"vendor": "SonicWall",
"product": "GMS",
"versions": [
{
"status": "affected",
"version": "9.5.1 and earlier versions"
}
],
"platforms": [
"Windows",
"Linux"
],
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],
"published": "2026-08-11T20:18:37.717",
"references": [
{
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011",
"source": "PSIRT@sonicwall.com"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
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"description": [
{
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"descriptions": [
{
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"value": "An unauthenticated remote code execution vulnerability was identified in GMS 9.5.1 (Build 9510.1044) and earlier versions which allows remote attacker to read sensitive data and perform arbitrary file write via zipslip."
}
],
"lastModified": "2026-08-28T18:58:27.140",
"sourceIdentifier": "PSIRT@sonicwall.com"
}