CVE-2019-0703: Microsoft Windows SMB Information Disclosure Vulnerability
CVE-2019-0703 · Severity: critical · CVSS 6.5 · Exploited in the wild · Published 2022-05-23
An information disclosure vulnerability exists in the Windows SMB Server when handling specific requests. An authenticated attacker could exploit this to leak sensitive information from the server.
Yes. CVE-2019-0703 is known to be exploited in the wild, first recorded on 23 May 2022. Treat it as urgent.
How severe is CVE-2019-0703?
Critical severity, with a CVSS score of 6.5, published 23 May 2022.
Which products and versions are affected?
Microsoft Windows 7 Service Pack 1; Microsoft Windows 8.1; Microsoft Windows RT 8.1; Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809; and 4 more.
Is there a fix for CVE-2019-0703?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-0703 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2019-0703?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 7 Service Pack 1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809
Microsoft Windows Server 2008 Service Pack 2, R2 Service Pack 1
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016 1709, 1803
Microsoft Windows Server 2019
Timeline
2019-04-09: disclosed: Initial analysis by NIST
2022-05-23: kev added: Added to CISA Known Exploited Vulnerabilities Catalog