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ExploitedIn CISA KEVFix available

CVE-2019-0703

Exploitation confirmed. First attested on 2022-05-23 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2019-04-09

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-04-0900:29CVE publishedNVD
  2. 2022-05-23Added to the CISA KEV catalogCISA KEV
  3. 2022-05-23Listed as exploited by GCVEGCVE
  4. 2022-05-23Exploitation first reportedCISA KEV
  5. 2025-02-0716:19SSVC exploitation set to activeCISA-ADP

Versions per branch

NVD
Microsoft windows server 2008
BranchAffectedFixed in
—all versionsno fix published
—= r2no fix published
Microsoft windows server 2012
BranchAffectedFixed in
—all versionsno fix published
—= r2no fix published
Microsoft windows 10 1507
BranchAffectedFixed in
—all versionsno fix published

12 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA2 products

As microsoft, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Microsoft Windows
    Affected
    • = 7 for 32-bit Systems Service Pack 1no fix stated
    • = 7 for x64-based Systems Service Pack 1no fix stated
    • = 8.1 for 32-bit systemsno fix stated
    • = 8.1 for x64-based systemsno fix stated
    • = RT 8.1no fix stated
    • = 10 for 32-bit Systemsno fix stated
    • = 10 for x64-based Systemsno fix stated
    • = 10 Version 1607 for 32-bit Systemsno fix stated

    10 more version lines in the CVE record.

  • Microsoft Windows Server
    Affected
    • = 2008 R2 for x64-based Systems Service Pack 1 (Core installation)no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2019-04-08

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-06-13

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-05-23
Patch Due Date
2022-06-13
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2019-04-09
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-4363-m599-g24f

Frequently asked questions

What is 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.

Is CVE-2019-0703 actively exploited?

Yes. CVE-2019-0703 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-06-13.

What is the CVSS score for CVE-2019-0703?

CVE-2019-0703 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

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Sources for this record