Security readout for executives and security teams
Plain-English summary
CVE-2021-47866 is a local privilege escalation issue in Honeywell WIN-PACK PRO 4.8. A low-privileged user on the affected Windows host may be able to make the GuardTourService start attacker-controlled code with higher privileges. This is most urgent where WIN-PACK PRO systems are reachable by many users or support shared administrative workflows.
Executive priority
Prioritize remediation on security, access-control, or operations hosts where WIN-PACK PRO is installed. The issue can turn a low-privileged local foothold into elevated system control. It is less urgent for systems without local user access, but should still be tracked because public exploit information exists.
Technical view
WIN-PACK PRO 4.8 has a CWE-428 unquoted service path in GuardTourService. Because the service executable path contains spaces and is not quoted, Windows service startup behavior may allow local path hijacking. CVSS v4 is 8.5, with local attack vector, low complexity, low privileges required, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to systems running Honeywell WIN-PACK PRO 4.8 with the vulnerable GuardTourService configuration. The issue requires local access or an already-compromised account on the host. Public sources do not identify affected versions beyond 4.8.
Exploitation context
The CVE references an Exploit-DB entry, indicating public exploit information exists. The CVE is not listed as CISA KEV in the provided data, and the sources do not state active exploitation. This should be treated as a serious post-compromise privilege escalation risk, not a remote initial-access issue.
Researcher notes
Evidence supports a local privilege escalation via unquoted Windows service path in GuardTourService for WIN-PACK PRO 4.8. Sources do not provide confirmed patch details, active exploitation claims, or broader version impact. Validate configuration and permissions before assuming exposure.
Mitigation direction
- Inventory systems running Honeywell WIN-PACK PRO 4.8.
- Check Honeywell guidance for fixed versions or vendor-approved remediation.
- Restrict local interactive access to affected WIN-PACK PRO hosts.
- Limit write permissions in directories along the service path.
- Monitor GuardTourService startup and unexpected binaries in related directories.
Validation and detection
- Confirm whether WIN-PACK PRO 4.8 is installed.
- Review GuardTourService configuration for an unquoted executable path containing spaces.
- Verify directory permissions along the service path are not writable by standard users.
- Check endpoint logs for unusual GuardTourService startup behavior.
- Document any compensating controls if vendor remediation is unavailable.
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-2021-47866 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-49690CVE reference · exploit
- Honeywell Product WebpageCVE reference · product
- VulnCheck Advisory: WIN-PACK PRO 4.8 - 'GuardTourService' 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.