CVE-2021-37343
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component...
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.
- Record
CVE-2021-37343- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.
- Record
CVE-2021-37343- Updated
- 2026-11-02
EUVDEUVD-2021-23912 No score
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.
- Record
EUVD-2021-23912- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fxgc-m2rg-79rx No score
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component...
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios.
- Record
GHSA-fxgc-m2rg-79rx- Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Nagios XI Scanner | |
| Metasploit | Nagios XI Autodiscovery Webshell Upload | 2021-07-15 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-37343 is a high vulnerability (CVSS 8.8) in Nagios Xi, published August 13, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 23.8%, the 97th percentile. No source names a fixed version.