SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-37223

Nagios Enterprises NagiosXI <= 5.8.4 contains a Server-Side Request Forgery (SSRF) vulnerability in schedulereport.php.

MEDIUM 6.5EPSS 4.98%

Does this matter?

Lower severity and a low EPSS score (4.98%). Track it; it rarely justifies an emergency change on its own.

Description

Nagios Enterprises NagiosXI <= 5.8.4 contains a Server-Side Request Forgery (SSRF) vulnerability in schedulereport.php. Any authenticated user can create scheduled reports containing PDF screenshots of any view in the NagiosXI application. Due to lack of input sanitisation, the target page can be replaced with an SSRF payload to access internal resources or disclose local system files.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
4.98% probability · 92th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-918
Affected
nagios/nagios xi
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 4.98%26 October 202626 October 2026

EPSS 5.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.