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CVE-2019-0703: Microsoft Windows SMB Information Disclosure Vulnerability

criticalknown exploitedCVE-2019-0703
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, which could lead to information disclosure from the server.

CSIRTS triage

vendor: Microsoftproduct: Windows SMB ServerInformation disclosure
What
An information disclosure vulnerability exists in the Windows SMB Server's handling of certain requests.
Who is affected
Users of Microsoft Windows SMB Server are affected by this vulnerability.
Urgency
Remediation is urgent as the vulnerability is actively exploited and classified as critical.
Action
Install the latest security updates for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-23
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-0703

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2019-0703coverage & exploitation statusNVD · CVE.org

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