Security readout for executives and security teams
Plain-English summary
CVE-2022-50930 affects Emerson PAC Machine Edition 9.80 Build 8695. A Windows service path is not properly quoted, which can let a local low-privileged user gain LocalSystem-level code execution when the service starts. This is mainly an insider, compromised-account, or shared-workstation risk, not a direct remote internet exposure.
Executive priority
Treat this as high priority for engineering workstations and control-system support environments. It is not presented as remotely exploitable, but it can let an attacker with a foothold become highly privileged. Prioritize systems with shared users, remote access, or operational importance.
Technical view
The TrapiServer service in Emerson PAC Machine Edition 9.80 has a CWE-428 unquoted service path issue. The CVSS 4.0 vector indicates local access, low attack complexity, low privileges required, no user interaction, and high impact to vulnerable-system confidentiality, integrity, and availability. Public exploit information is referenced, but the bundle does not show confirmed in-the-wild exploitation.
Likely exposure
Exposure is likely limited to Windows systems running Emerson PAC Machine Edition 9.80 Build 8695 with the TrapiServer service installed. Risk is highest where non-administrative users can log on locally or where an attacker has already obtained low-privileged access.
Exploitation context
The vulnerability requires local access and low privileges. It can convert limited access into LocalSystem execution during service startup. The source bundle references an ExploitDB entry, indicating public exploit information exists. It is not listed as CISA KEV in the provided data, so active exploitation is not established.
Researcher notes
Evidence is based on CVE metadata, VulnCheck, and an ExploitDB reference. The bundle does not provide an Emerson security advisory, patch version, or confirmed exploitation. Avoid assuming other Emerson products or versions are affected without vendor confirmation.
Mitigation direction
- Identify systems running Emerson PAC Machine Edition 9.80 Build 8695.
- Check Emerson guidance or support channels for an official fix or upgrade path.
- Restrict local logon and remote desktop access to trusted administrators only.
- Review service permissions and startup paths for unsafe writable locations.
- Increase monitoring on engineering workstations using this software.
Validation and detection
- Confirm whether PAC Machine Edition 9.80 Build 8695 is installed.
- Verify whether the TrapiServer service exists on the host.
- Review the service configuration for an unquoted executable path.
- Check whether non-admin users can write to parent path locations.
- Document affected hosts and prioritize remediation by operational criticality.
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-2022-50930 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-50745CVE reference · exploit
- Emerson Official HomepageCVE reference · product
- Software Download LinkCVE reference · product
- VulnCheck Advisory: Emerson PAC Machine Edition 9.80 Build 8695 - 'TrapiServer' 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.