CISA KEV · Known exploitedHigh

CVE-2017-0147

Microsoft SMBv1 server

The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to obtain sensitive information from process memory via a crafted packets, aka "Windows SMB Information Disclosure Vulnerability."

CVSS: 7.5
EPSS: 99.7%
CISA KEV: Listed
Published: 2017.03.17

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability99.7%

Technical severityCVSS 7.5

Vulnerability overview

Affected product and versions

Product: Microsoft SMBv1 server
Affected versions: The SMBv1 server in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold, 1511, and 1607, and Windows Server 2016, r2, 13.02, 13.03, 13.20, 13.21, va10, vb10, >= 4.0 < 4.0e, 5.0a, 1.0, 1.1
Fixed versions: 4.0e

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.06.14

1
Identify
Confirm that Microsoft SMBv1 server and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-200
KEV added: 2022.05.24
Ransomware use: 확인됨