An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain reques…

published 2018-09-13 8y ago modified 2026-06-17 4mo ago also EUVD-2018-20080

cvss: 5.9; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.9%; EPSS 5.9% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requests, aka "Windows SMB Information Disclosure Vulnerability." This affects Windows Server 2012, Windows 10, Windows 8.1, Windows RT 8.1, Windows Server 2012 R2.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8444 advisory

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Exploit prediction

5.86% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

Microsoft Windows Server 2012
Microsoft Windows 10
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2012 R2

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-8444
patch, vendor-advisory
securityfocus.com /bid/105226
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-8444
NVD CVE-2018-8444

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