CVE-2020-37223: IObit Uninstaller 9.5.0.15 Unquoted Service Path Privilege Escalation
IObit Uninstaller 9.5.0.15 contains an unquoted service path vulnerability in the IObitUnSvr service that allows local attackers to escalate privileges to SYSTEM level. Attackers can place a malicious executable named IObit.exe in the C:\Program Files (x86)\IObit directory and restart the service to execute code with SYSTEM privileges.
Security readout for executives and security teams
Plain-English summary
This flaw can let someone who already has local access to a Windows machine turn limited access into SYSTEM-level control if IObit Uninstaller 9.5.0.15 is installed. The main business risk is endpoint takeover after an initial foothold, not remote internet compromise.
Executive priority
Prioritize remediation on managed Windows endpoints where IObit Uninstaller is present, especially shared workstations or systems with sensitive access. This is not described as remote unauthenticated compromise, but it can turn a limited local foothold into SYSTEM control.
Technical view
CVE-2020-37223 is a CWE-428 unquoted service path issue in the IObitUnSvr service for IObit Uninstaller 9.5.0.15. The CVSS 4.0 score is 8.5, with local attack vector, low complexity, low privileges required, no user interaction, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure appears limited to Windows endpoints running IObit Uninstaller 9.5.0.15. The source bundle does not identify other affected versions or products. Risk is highest where users or attackers can gain local low-privileged access and interact with the affected service environment.
Exploitation context
The CVE is not listed as KEV in the supplied bundle. A public ExploitDB reference is cited, so public exploit information exists. The supplied sources do not prove active exploitation in the wild, and this should not be reported as actively exploited without stronger evidence.
Researcher notes
Do not broaden scope beyond IObit Uninstaller 9.5.0.15 based on the supplied evidence. No vendor patch version is named in the bundle. Treat ExploitDB as evidence of public exploit detail, not evidence of observed exploitation.
Mitigation direction
Inventory endpoints for IObit Uninstaller 9.5.0.15.
Remove affected installations if the software is not business-required.
Check IObit guidance for a corrected or supported version.
Restrict local software installation and write permissions on managed endpoints.
Monitor endpoint alerts for suspicious service changes or privilege escalation behavior.
Validation and detection
Identify hosts with IObit Uninstaller 9.5.0.15 installed.
Review the IObitUnSvr service configuration for an unquoted service path.
Check install directory permissions for unintended write access by standard users.
Review EDR logs for suspicious service restarts or unexpected binaries near the install path.
Confirm remediation by rechecking version and service path configuration.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · low confidence lookup
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.
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.
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.
2CVSS vectors
3Timeline events
1ADP providers
5Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total
CVSS vector scores
2 official scores
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-428 · source CWE mapping
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.