Security readout for executives and security teams
Plain-English summary
CVE-2019-0905 is a Windows Jet Database Engine flaw that can let an attacker run code if a user opens a malicious file. It is serious because successful exploitation could compromise confidentiality, integrity, and availability on the victim system. The provided sources do not show active exploitation.
Executive priority
Treat this as a high-priority patching issue, especially for user workstations and legacy Windows systems. It requires user interaction, which lowers immediacy compared with wormable flaws, but successful exploitation can give code execution on the victim machine.
Technical view
The vulnerability is improper object handling in memory by the Windows Jet Database Engine. Microsoft rates it as remote code execution with CVSS 3.1 score 7.8: local attack vector, low complexity, no privileges, user interaction required, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on Windows endpoints or servers running the listed affected versions, including Windows 7, 8.1, Windows 10 releases, Windows Server 2008, 2016, 2019, and Server Core variants, where the relevant Microsoft update has not been applied.
Exploitation context
The attacker must entice a victim to open a specially crafted file. The provided CVSS temporal vector marks exploit code maturity as proof-of-concept, but the bundle does not cite active exploitation and KEV is false.
Researcher notes
The source bundle does not provide CWE detail, exploit artifacts, or workaround specifics beyond Microsoft’s update correcting Jet memory handling. Validation should focus on affected Windows build coverage, update presence, and exposure to untrusted file-opening workflows.
Mitigation direction
- Apply Microsoft security updates for CVE-2019-0905 on affected Windows systems.
- Prioritize user-facing workstations and systems that process untrusted documents.
- Check Microsoft guidance for product-specific update availability and prerequisites.
- Retire or isolate unsupported Windows versions that cannot receive updates.
- Reinforce controls that block untrusted attachments and suspicious file delivery.
Validation and detection
- Inventory Windows versions against the affected product list in the advisory.
- Verify installed Microsoft security updates address CVE-2019-0905.
- Confirm legacy Windows 7 and Server 2008 systems are patched or isolated.
- Review endpoint telemetry for suspicious document-opening events around exposed systems.
- Document remaining exceptions and compensating controls for unpatched assets.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-0905 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/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:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Jet Database Engine Remote Code Execution VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0905CVE 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.