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CVE-2017-0148 Microsoft CVE debrief

CVE-2017-0148 is a Microsoft SMBv1 server remote code execution vulnerability that CISA includes in its Known Exploited Vulnerabilities catalog. The KEV entry indicates known exploitation and notes known ransomware campaign use, so this should be treated as an urgent patching and exposure-reduction item. CISA’s required action is to apply updates per vendor instructions.

Vendor
Microsoft
Product
SMBv1 server
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-04-06
Original CVE updated
2022-04-06
Advisory published
2022-04-06
Advisory updated
2022-04-06

Who should care

Windows security teams, patch management owners, incident responders, and administrators responsible for Microsoft SMBv1 server exposure or legacy SMBv1 dependencies should prioritize this CVE.

Technical summary

According to the supplied official records, CVE-2017-0148 affects Microsoft SMBv1 server and enables remote code execution. CISA lists it in KEV, with a required action to apply vendor updates. The KEV metadata also marks the vulnerability as having known ransomware campaign use.

Defensive priority

Immediate

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions as soon as possible.
  • Verify which systems still rely on SMBv1 and remove or disable SMBv1 where operationally feasible.
  • Prioritize internet-facing and high-value systems that expose SMBv1-related services.
  • Use CISA KEV status to drive emergency patching, validation, and follow-up scanning.
  • Check incident response and detection coverage for systems that may already have been affected.

Evidence notes

This debrief is limited to the supplied official source corpus: CISA KEV metadata, the CVE record, and the NVD detail link. The corpus provides the vulnerability name, affected vendor/product, KEV status, due date, and known ransomware campaign use, but does not include a CVSS score, exploit mechanism details, or remediation specifics beyond CISA’s instruction to apply vendor updates.

Official resources

Based on official CVE/CISA KEV records supplied in the source corpus. No exploit instructions, proof-of-concept details, or unsupported claims included.