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Vulnerabilities

Vulnerability · CVE-2021-47861

Event Log Explorer 4.9.3 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges.

Published Jan 21, 2026 · catalog updated Mar 5, 2026 · FSPro Labs Event Log Explorer

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2021-47861. EPSS is 0.15%. Act only if a listed version of FSPro Labs Event Log Explorer is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Vendor / distro source
Affected products
vendor FSPro Labs Event Log Explorer 4.9.3

Event Log Explorer 4.9.3 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path by placing malicious executables in specific file system locations that will be executed with LocalSystem account privileges during service startup.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor FSPro Labs Event Log Explorer 4.9.34.9.3

How to fix CVE-2021-47861

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2021-47861. EPSS is 0.15%. Act only if a listed version of FSPro Labs Event Log Explorer is installed.

Which versions are affected?

Compare what you have installed with FSPro Labs Event Log Explorer 4.9.3 4.9.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 21, 2026 · EUVD

    Detected

    Event Log Explorer 4.9.3 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path by placing malicious executables in specific file system locations that will be executed with LocalSystem account privileges during service startup.

  2. Mar 5, 2026 · EUVD

    Updated

    Event Log Explorer 4.9.3 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path by placing malicious executables in specific file system locations that will be executed with LocalSystem account privileges during service startup.

Sources

  • CVE.orgVulnerability recordCVE-2021-47861

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-47861

    30-day exploitation probability 0.15%

    first.org
  • EUVDVulnerability recordEUVD-2026-3635

    Event Log Explorer 4.9.3 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path by placing malicious executables in specific file system locatio

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • FIRST EPSSNov 3, 2026
  • EUVDNov 2, 2026