CVE-2025-33073
Status: AnalyzedHigh (8.8)⚠ Active exploitation
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 83%
- Percentile among all scored CVEs: 100
- Score date: 10/1/2026
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).
CISA KEV — actively exploited
- Added to catalog: 10/20/2025
- Remediation due date: 11/10/2025
- Known ransomware use: Unknown
Affected technologies (15)
Microsoft — Windows 10 1507Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 22h2Microsoft — Windows 11 23h2Microsoft — Windows 11 24h2Microsoft — Windows Server 2008Microsoft — Windows Server 2012Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2022 23h2Microsoft — Windows Server 2025
CWEs
- CWE-284
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33073
- https://www.vicarius.io/vsociety/posts/cve-2025-33073-detection-script-improper-access-control-in-windows-smb-affects-microsoft-products
- https://www.vicarius.io/vsociety/posts/cve-2025-33073-mitigation-script-improper-access-control-in-windows-smb-affects-microsoft-products
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33073
Raw JSON (NVD)
Show
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"published": "2025-06-10T17:23:02.967",
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"descriptions": [
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},
{
"lang": "es",
"value": "Un control de acceso inadecuado en Windows SMB permite que un atacante autorizado eleve privilegios en una red."
}
],
"lastModified": "2026-06-17T09:13:04.220",
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"cisaExploitAdd": "2025-10-20",
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"cisaVulnerabilityName": "Microsoft Windows SMB Client Improper Access Control Vulnerability"
}