CVE-2021-37343 in the critical feed json
A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE und…
published 2021-08-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23912
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 23.8%
- EPSS 23.8% chance of exploitation in 30 days, percentile 97%
- public exploits
- 2
- Metasploit
Summary
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.
Patch / fix
- nagios nagios_xi 5.8.5
Timeline
- First public exploit (Metasploit exploit/linux/http/nagios_xi_autodiscovery_webshell)
- Published
Exploit prediction
23.82% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/nagios_xi_autodiscovery_webshell Nagios XI Autodiscovery Webshell Upload metasploit exploit, excellent rank, 2021-07-15
- Metasploit auxiliary/scanner/http/nagios_xi_scanner Nagios XI Scanner metasploit auxiliary, normal rank
- packetstormsecurity.com http://packetstormsecurity.com/files/165978/Nagios-XI-Autodiscovery-Shell-Upload.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
packetstormsecurity.com
/files/165978/Nagios-XI-Autodiscovery-Shell-Upload.html
exploit, third-party-advisory, vdb-entry
-
nagios.com
/downloads/nagios-xi/change-log/
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-37343
- NVD CVE-2021-37343
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