Security readout for executives and security teams
CVE-2018-0833 is a denial-of-service flaw in Microsoft’s SMBv2/SMBv3 client on Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2. A specially crafted SMB interaction can crash or disrupt affected systems. It is not listed as CISA KEV in the provided bundle, but public exploit references exist. Exposure is most likely where affected Windows systems use the SMB client and can interact with untrusted or attacker-controlled SMB services. Legacy Windows 8.1, RT 8.1, and Server 2012 R2 assets are the priority inventory targets. Handle as a moderate legacy-platform availability risk. Prioritize systems that still run affected Windows versions and depend on SMB for business workflows. Public exploit references raise urgency, but the provided evidence does not support active exploitation claims. Mitigation focus: Review Microsoft MSRC guidance for CVE-2018-0833 and apply relevant security updates.; Identify and retire unsupported or unnecessary Windows 8.1, RT 8.1, and Server 2012 R2 systems.; Restrict SMB access to trusted networks and block unnecessary outbound SMB traffic..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2018-0833 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833CVE reference · x_refsource_CONFIRM
- https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833CVE reference · x_refsource_MISC
- 44189CVE reference · exploit, x_refsource_EXPLOIT-DB
Products and packages named in the record
CWE details
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