The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka "SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability".
Published 2018-02-15 02:29:02
Updated 2019-03-13 15:23:51
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2018-0833

Probability of exploitation activity in the next 30 days: 3.00%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 90 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-0833

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
6.3
MEDIUM AV:N/AC:M/Au:S/C:N/I:N/A:C
6.8
6.9
NIST
5.3
MEDIUM CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
1.6
3.6
NIST

CWE ids for CVE-2018-0833

  • A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0833

Products affected by CVE-2018-0833

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