high Known exploitedREV. 01

CVE-2017-0147Windows File Sharing — Information Disclosure in the Legacy Protocol

The first version of the Windows file-sharing protocol leaks memory contents to an unauthenticated request, one of the flaws bundled into the tooling that spread across the internet in 2017.

YOUR NEXT MOVE

Apply Microsoft's update, and retire the first version of the file-sharing protocol everywhere it still runs.

Read the risk

THE VITAL STATS
CVSS score
7.5/ 10
CVSS v3.1
EPSS probability
100%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2017-03-17
Added to KEV
2022-05-24
Exploit published
Yes
Confidence
medium
Kill chain
discovery
MITRE ATT&CK
T1190
Severity
high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attacker needsNetwork access to the file-sharing port

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-08-07scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-08-07scrty-crds-pipeline/0.1high
epssapi.first.org2026-08-07scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-08-07claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2017-0147 · CRDS 0.1 · Issued 2026-08-07