Security readout for executives and security teams
Plain-English summary
CVE-2019-1045 is a Windows Network File System privilege escalation flaw. A user who already has local authenticated access could run a specially crafted application and gain elevated permissions. This is not described as a remote internet attack in the provided sources.
Executive priority
Treat as high priority in legacy Windows environments. It requires local access, but it can convert an initial low-privilege foothold into elevated code execution. Patch verification is most urgent on shared systems and older servers.
Technical view
Windows NFS improperly handles objects in memory, creating an elevation-of-privilege condition. CVSS 3.1 is 7.8 with local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure applies to the listed Microsoft Windows client and server versions, including Windows 7, 8.1, Windows 10 releases, and Server 2008 R2 through 2012 R2. The source does not specify configuration prerequisites beyond Windows NFS involvement.
Exploitation context
The provided sources describe exploitation by a locally authenticated attacker running a specially crafted application. CISA KEV status is false in the bundle, and no cited source states active exploitation.
Researcher notes
Evidence supports local privilege escalation only. The bundle provides no CWE, exploit details, or named KBs. Research should focus on affected Windows NFS memory object handling and patch presence without assuming remote reachability or active exploitation.
Mitigation direction
- Apply Microsoft security updates for CVE-2019-1045 on affected Windows systems.
- Prioritize shared servers, multi-user endpoints, and systems exposing Windows NFS functionality.
- Confirm unsupported legacy Windows systems have valid extended support or are retired.
- Review MSRC guidance for exact affected editions and update availability.
Validation and detection
- Inventory systems matching the affected Windows versions listed in the source bundle.
- Check whether Windows NFS components or roles are installed or enabled.
- Verify the Microsoft security update for CVE-2019-1045 is installed.
- Review local-user access on affected systems for unnecessary accounts or privileges.
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.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-1045 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:L/UI:N/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:L/UI:N/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:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows Network File System Elevation of Privilege VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1045CVE 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.