6.5

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

CVSS: 6.5v3.1MediumKEVAnalyzed
Published 08-04-2019Last modified 21-10-2025
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Vulnerability summary

CVE-2019-0703 is a medium (CVSS 6.5) vulnerability in Microsoft Windows. It is known to be exploited: CISA lists it, first on 23-05-2022. EPSS estimates a 9.64% chance of exploitation in the next 30 days, higher than 95.4% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
9.64%
0%100%
Low · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-04-2019
    PublishedVulnerability first disclosed.
  2. 23-05-2022
    Added to CISA KEVMicrosoft Windows SMB Information Disclosure Vulnerability
  3. 13-06-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

9.64%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

0.00 pp

From 9.64% on 19-09-2026

19-09-202619-10-2026
EPSS score
9.64%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
23-05-2022
Federal due date
13-06-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2019-0703

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft17 products
  • windowsEOL7 for 32-bit Systems Service Pack 1 | 7 for x64-based Systems Service Pack 1 | 8.1 for 32-bit systems | 8.1 for x64-based systems | RT 8.1 | 10 for 32-bit Systems | 10 for x64-based Systems | 10 Version 1607 for 32-bit Systems | 10 Version 1607 for x64-based Systems | 10 Version 1703 for 32-bit Systems | 10 Version 1703 for x64-based Systems | 10 Version 1709 for 32-bit Systems | 10 Version 1709 for x64-based Systems | 10 Version 1803 for 32-bit Systems | 10 Version 1803 for x64-based Systems | 10 Version 1803 for ARM64-based Systems | 10 Version 1809 for 32-bit Systems | 10 Version 1709 for ARM64-based Systems
  • windows_10_1507na
  • windows_10_1607na
  • windows_10_1703na
  • windows_10_1709na

1 vendor · 17 products

References

2 links