CVE-2019-0703

An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, aka 'Windows SMB Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0704, CVE-2019-0821.

Affected

Microsoft · Windows · Windows Server

CVSS v3.1 NVD

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

CVSS v2.0 NVD

4.0 MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N

EPSS

9.64% chance of exploitation in the next 30 days, 95th percentile

CISA KEV

added 2022-05-23

Published

2019-04-08

Updated

2025-10-21

Proof-of-concept exploits (1)

• HarshRajSinghania/smbvulnrecon0★ · 2024-11-25

Security advisories

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0703

References

• CVE Record
• NVD entry

Related

• CVE-2017-0144
• CVE-2020-0796
• CVE-2021-1675
• CVE-2022-38023
• CVE-2023-1545
• CVE-2026-71294