Security readout for executives and security teams
Plain-English summary
CVE-2019-1046 is a Windows graphics component memory disclosure issue. Successful exploitation could reveal sensitive memory contents that help an attacker continue compromising a user’s system. Microsoft states exploitation could involve a crafted document or an untrusted webpage, and the fix corrects Windows GDI memory object handling.
Executive priority
Handle through normal vulnerability management, with higher priority for unpatched endpoints used for browsing or document handling and for legacy Windows estates. The issue can aid further compromise, but the supplied sources do not support active exploitation or direct remote code execution.
Technical view
The vulnerability is in Windows GDI and is described as improper disclosure of memory contents. The supplied CVSS 3.1 score is 4.7 with high confidentiality impact, high attack complexity, local attack vector, and low privileges required. Microsoft’s update addresses object handling in memory.
Likely exposure
Exposure is likely limited to unpatched Microsoft Windows systems listed in the advisory, including Windows 7, Windows 8.1, Windows 10 versions 1507 through 1903, Windows Server 2016, Windows Server 2019, and affected Server Core installations.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Microsoft describes possible exploitation through a specially crafted document or an untrusted webpage. Treat this primarily as a patch-compliance and legacy-Windows exposure issue unless new vendor intelligence changes that assessment.
Researcher notes
Evidence is limited to vendor and CVE source data. The advisory identifies Windows GDI memory disclosure and says the update corrects object handling in memory. No CWE, exploit details, or KEV evidence are provided in the source bundle.
Mitigation direction
- Apply the Microsoft security update for CVE-2019-1046 where applicable.
- Check MSRC guidance for exact update applicability by Windows version.
- Prioritize exposed workstations handling documents or web content.
- Include Server Core systems in patch compliance reviews.
- Limit exposure to untrusted documents and webpages until patched.
Validation and detection
- Inventory systems against the affected Windows versions in the advisory.
- Verify the relevant Microsoft security update is installed.
- Run authenticated vulnerability scanning for CVE-2019-1046.
- Review patch status separately for servers and user endpoints.
- Confirm legacy Windows assets are not excluded from update reporting.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-1046 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.7MediumVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows GDI Information Disclosure VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1046CVE reference · x_refsource_MISC, x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.