RCE in Nagios Xi
CVE-2021-3273
Nagios XI below 5.7 is affected by code injection in the /nagiosxi/admin/graphtemplates.php component. To exploit this vulnerability, someone must have an admin user account in Nagios XI's web system.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.072 (94.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.072 · newest: 0.072 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.nagios.com/downloads/nagios-xi/change-log/ (Release Notes, Vendor Advisory)
- gist.github.com/leommxj/93edce6f8572cefe79a3d7da4389374e (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3273?
- CVE-2021-3273 is a high-severity vulnerability in Nagios Xi, classified under Code Injection. CVSS score: 7.2/10. Published 2021-02-25.
- How severe is CVE-2021-3273?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-3273 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.