Security readout for executives and security teams
Plain-English summary
This is a local privilege escalation issue in Epson EasyMP Network Projection 2.81 for Windows. A user already on the machine could potentially abuse an unquoted Windows service path to run code as LocalSystem. It is not a remote entry point, but it can turn a limited workstation foothold into full local control.
Executive priority
Treat as high priority where the Epson software is deployed broadly or on shared machines. It is not internet-exposed by itself, but it can materially increase damage from an initial local compromise.
Technical view
CVE-2020-37064 is a CWE-428 unquoted service path vulnerability in the EMP_NSWLSV service installed by EPSON EasyMP Network Projection 2.81. The service path under C:\Program Files (x86)\EPSON Projector\EasyMP Network Projection V2\ may allow local code execution with LocalSystem privileges. CVSS v4 is 8.5.
Likely exposure
Exposure is likely limited to Windows endpoints with EPSON EasyMP Network Projection version 2.81 installed and the EMP_NSWLSV service present. Organizations using Epson projector management or classroom/meeting-room projection software should prioritize endpoint inventory and version checks.
Exploitation context
Public exploit information exists via ExploitDB, but the source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires local access and low privileges, making this most relevant after phishing, malware infection, insider misuse, or shared workstation compromise.
Researcher notes
The record identifies version 2.81 and EMP_NSWLSV specifically. Epson’s linked page references EasyMP Network Projection v2.86, but the source bundle does not explicitly state that v2.86 fixes this CVE. Avoid assuming a patch without vendor confirmation.
Mitigation direction
- Inventory Windows systems for EPSON EasyMP Network Projection 2.81.
- Check Epson’s support page and advisory sources for supported update guidance.
- Upgrade, remove, or disable the software where business use is not required.
- Restrict local write permissions in affected application directories where feasible.
- Prioritize remediation on shared, kiosk, classroom, and meeting-room systems.
Validation and detection
- Confirm whether EMP_NSWLSV exists on Windows endpoints.
- Verify installed EasyMP Network Projection version is or is not 2.81.
- Inspect the service path for unquoted paths containing spaces.
- Confirm the service privilege context, especially LocalSystem.
- Document remediation status against Epson or organizational endpoint standards.
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.
CWE-428: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution 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 lookupCVE-2020-37064 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
- 8.5 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.5HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48069CVE reference · exploit
- EPSON EasyMP Network Projection Support PageCVE reference · product
- VulnCheck Advisory: EPSON EasyMP Network Projection 2.81 - 'EMP_NSWLSV' Unquoted Service PathCVE reference · third-party-advisory
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.
Unquoted Search Path or Element
Unquoted Search Path or Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.