CVE-2018-8736
A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability escalating to root.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 45.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability escalating to root.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 45.63% probability · 99th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 30 April 2018
- CISA KEV
- Not listed
- Affected
- nagios/nagios xi
- Source
- cve@mitre.org
EPSS moved from 44.5% on 21 September 2026 to 45.6% on 27 October 2026, peaking at 46.3% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://blog.redactedsec.net/exploits/2018/04/26/nagios.htmlExploit, Release Notes, Technical Description, Third Party Advisory
- https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0fThird Party Advisory
- https://www.exploit-db.com/exploits/44560/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44969/Exploit, Third Party Advisory, VDB Entry
- https://www.nagios.com/downloads/nagios-xi/change-log/Release Notes, Vendor Advisory
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://blog.redactedsec.net/exploits/2018/04/26/nagios.htmlExploit, Release Notes, Technical Description, Third Party Advisory
- https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0fThird Party Advisory
- https://www.exploit-db.com/exploits/44560/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44969/Exploit, Third Party Advisory, VDB Entry
- https://www.nagios.com/downloads/nagios-xi/change-log/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.