CVE-2021-40345
A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 22.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 22.69% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- nagios/nagios xi
- Source
- cve@mitre.org
EPSS 22.7% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://github.com/ArianeBlow/NagiosXI-EmersonFI/blob/main/README.mdExploit, Third Party Advisory
- https://synacktiv.comNot Applicable
- https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdfExploit, Third Party Advisory
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://github.com/ArianeBlow/NagiosXI-EmersonFI/blob/main/README.mdExploit, Third Party Advisory
- https://synacktiv.comNot Applicable
- https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdfExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.