Security readout for executives and security teams
Plain-English summary
CVE-2021-47823 is a local privilege escalation issue in Acer ePowerSvc 6.0.3008.0. A user already on the machine may be able to make code run with LocalSystem privileges because the Windows service path is not quoted. This is important for endpoint hardening, especially on shared or user-managed Acer systems.
Executive priority
Treat as a high-priority endpoint hardening issue, not an internet-facing emergency. Address first where many users share devices or where local compromise could lead to broader access. Track vendor guidance because the provided sources do not name a specific patch.
Technical view
The issue is CWE-428, an unquoted service path in ePowerSvc.exe. The CVSS v4.0 score is 8.5. The attack vector is local, with low complexity, low privileges required, and no user interaction. Successful exploitation may affect confidentiality, integrity, and availability on the vulnerable host.
Likely exposure
Exposure appears limited to Windows endpoints running Acer ePowerSvc 6.0.3008.0. The provided sources do not identify other affected versions or products. Organizations should focus on Acer endpoint inventories, OEM utility deployments, and systems where standard users can log in locally.
Exploitation context
The sources describe a local privilege escalation condition, not a remote compromise path. Exploit-DB lists a public exploit reference, but the CVE is not marked as CISA KEV in the provided data. Do not assume active exploitation without additional evidence.
Researcher notes
Public sources identify Acer ePowerSvc 6.0.3008.0 and CWE-428. The core risk is LocalSystem execution during service startup through service path ambiguity. Evidence is incomplete on fixed versions, vendor advisory details, and observed exploitation in the wild.
Mitigation direction
- Check Acer and VulnCheck guidance for fixed versions or vendor-recommended remediation.
- Prioritize affected shared endpoints, kiosks, labs, and systems with local standard-user access.
- Remove or disable unnecessary Acer ePowerSvc installations only after operational validation.
- Restrict local interactive access on systems that cannot be remediated promptly.
Validation and detection
- Inventory endpoints for Acer ePowerSvc version 6.0.3008.0.
- Review the Windows service configuration for an unquoted executable path.
- Assess whether standard users can write to directories in the service path.
- Confirm remediation by rechecking service configuration after updates or vendor action.
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-2021-47823 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-49900CVE reference · exploit
- Acer Official HomepageCVE reference · product
- VulnCheck Advisory: ePowerSvc 6.0.3008.0 - 'ePowerSvc.exe' 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.