Security readout for executives and security teams
Plain-English summary
This flaw affects Selea CarPlateServer 4.0.1.6 on Windows. A person who already has local access could abuse how the service path is configured to run code with LocalSystem privileges. This is not described as a remote break-in, but it can turn limited access into full control of the host.
Executive priority
Treat as high priority where CarPlateServer runs on operational or camera-management systems. It is mainly a post-compromise privilege escalation risk, but successful abuse could give full host control. Prioritize asset discovery, local access hardening, and vendor remediation confirmation.
Technical view
CVE-2020-36903 is a CWE-428 unquoted service path issue in Selea CarPlateServer 4.0.1.6. The Windows service binary path can be interpreted unsafely when the application starts or the system reboots, allowing a low-privileged local user to potentially execute code as LocalSystem.
Likely exposure
Exposure is limited to Windows systems running Selea CarPlateServer 4.0.1.6. The attacker needs local privileges and an opportunity to place code in a relevant writable path. The sources do not identify other affected versions or remote unauthenticated exposure.
Exploitation context
The CVSS v4 score is 8.5 with local attack vector, low complexity, low privileges, and no user interaction. ExploitDB is referenced, indicating public exploit information exists. The bundle does not show CISA KEV listing or confirmed active exploitation.
Researcher notes
The source bundle names only Selea CarPlateServer 4.0.1.6. No patch version is provided in the supplied sources. The CVE is not marked KEV. Public exploit reference exists, so defenders should validate configuration safely without reproducing exploit behavior.
Mitigation direction
- Identify all Selea CarPlateServer installations and versions.
- Check vendor guidance for fixed versions or supported remediation.
- Prioritize upgrading or replacing version 4.0.1.6 if vendor guidance exists.
- Restrict local logon rights on affected servers.
- Review writable permissions on service path directories.
- Confirm any service configuration changes with vendor support first.
Validation and detection
- Inventory hosts running Selea CarPlateServer 4.0.1.6.
- Inspect the Windows service ImagePath for unquoted paths containing spaces.
- Review permissions on each parent directory in the service path.
- Verify whether the service runs with LocalSystem privileges.
- Check reboot and service-start monitoring for unexpected binaries or path abuse.
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 lookupPrivilege 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-2020-36903 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-49453CVE reference · exploit
- Vendor HomepageCVE reference · product
- Zero Science Lab Disclosure (ZSL-2021-5621)CVE reference · third-party-advisory
- VulnCheck Advisory: Selea CarPlateServer 4.0.1.6 Local Privilege Escalation via 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.