CVE-2026-70149
Status: Awaiting AnalysisHigh (8.8)—
Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
FIRST hasn't scored this CVE yet (usual for very recent or rejected CVEs).
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
T1203Exploitation for Client Executionexecution75 % - Primary impact
T1005Data from Local Systemcollection60 %
El vector CVSS con UI:R fija T1203; la descripción solo indica divulgación local de información, sin ejecución de comandos, por lo que la pista T1059 no se sostiene.
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-122, CWE-190
References
Raw JSON (NVD)
Show
{
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"published": "2026-10-13T19:19:28.033",
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70149",
"source": "secure@microsoft.com"
}
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"source": "secure@microsoft.com",
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{
"lang": "en",
"value": "Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally."
}
],
"lastModified": "2026-10-13T22:18:11.007",
"sourceIdentifier": "secure@microsoft.com"
}