Security readout for executives and security teams
Plain-English summary
CVE-2020-36990 is a local privilege-escalation issue in Input Director 1.4.3 on Windows. A user who already has local access may be able to make the Input Director service run attacker-controlled code with LocalSystem privileges during startup or reboot. This is not a remote entry point, but it can turn limited machine access into full system control.
Executive priority
Treat as high priority where Input Director 1.4.3 exists on shared or user-accessible Windows systems. It is not a network wormable issue, but it can help an intruder gain full control after initial access. Prioritize inventory, vendor guidance review, and removal or upgrade decisions.
Technical view
The issue is an unquoted Windows service path in the Input Director service configuration, classified as CWE-428. Because the service path contains spaces and is not quoted, Windows path parsing can allow execution of a malicious executable placed in a searched path location. The CVSS v4.0 score is 8.5 with local attack vector, low complexity, low privileges, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to Windows systems running Input Director version 1.4.3 with the vulnerable service configuration. Systems where low-privileged users can write to relevant path locations are at higher risk. The provided sources do not identify other affected versions or platforms.
Exploitation context
The source bundle includes an Exploit-DB reference, so public exploit information exists. CISA KEV status is false in the provided data, and no cited source states active exploitation. Exploitation requires local access and is most useful after an attacker has obtained a low-privileged foothold.
Researcher notes
Evidence supports Input Director 1.4.3 only. The record names CWE-428 and describes LocalSystem execution via unquoted service path during startup or reboot. The sources do not provide confirmed active exploitation or a specific vendor patch. Validate service configuration and writable path conditions before assigning host-level risk.
Mitigation direction
- Inventory Windows endpoints for Input Director 1.4.3.
- Check Input Director vendor guidance for fixed versions or configuration advice.
- Upgrade, remove, or disable Input Director where business need is low.
- Restrict local write permissions in directories related to service startup paths.
- Prioritize controls on shared workstations and systems with multiple local users.
Validation and detection
- Confirm installed Input Director version on Windows endpoints.
- Inspect the Input Director Windows service configuration for an unquoted executable path.
- Verify whether the service path contains spaces.
- Review directory permissions along the service path for low-privileged write access.
- Document affected hosts and remediation status in vulnerability management records.
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 lookupCVE-2020-36990 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-48795CVE reference · exploit
- Input Director Official HomepageCVE reference · product
- VulnCheck Advisory: Input Director 1.4.3 - 'Input Director' 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.