CVE-2016-9565
MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server.
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
MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server. NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4796.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 22.68% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 15 December 2016
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- nagios/nagios
- Source
- cve@mitre.org
EPSS moved from 18.8% on 21 September 2026 to 22.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
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
- http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://rhn.redhat.com/errata/RHSA-2017-0211.html
- http://rhn.redhat.com/errata/RHSA-2017-0212.html
- http://rhn.redhat.com/errata/RHSA-2017-0213.html
- http://rhn.redhat.com/errata/RHSA-2017-0214.html
- http://rhn.redhat.com/errata/RHSA-2017-0258.html
- http://rhn.redhat.com/errata/RHSA-2017-0259.html
- http://seclists.org/fulldisclosure/2016/Dec/57Mailing List, Third Party Advisory
- http://www.securityfocus.com/archive/1/539925/100/0/threaded
- http://www.securityfocus.com/bid/94922Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037488
- https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.htmlExploit, Third Party Advisory
- https://security.gentoo.org/glsa/201702-26
- https://security.gentoo.org/glsa/201710-20
- https://www.exploit-db.com/exploits/40920/
- https://www.nagios.org/projects/nagios-core/history/4x/Vendor Advisory
- http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://rhn.redhat.com/errata/RHSA-2017-0211.html
- http://rhn.redhat.com/errata/RHSA-2017-0212.html
- http://rhn.redhat.com/errata/RHSA-2017-0213.html
- http://rhn.redhat.com/errata/RHSA-2017-0214.html
- http://rhn.redhat.com/errata/RHSA-2017-0258.html
- http://rhn.redhat.com/errata/RHSA-2017-0259.html
- http://seclists.org/fulldisclosure/2016/Dec/57Mailing List, Third Party Advisory
- http://www.securityfocus.com/archive/1/539925/100/0/threaded
- http://www.securityfocus.com/bid/94922Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037488
- https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.htmlExploit, Third Party Advisory
- https://security.gentoo.org/glsa/201702-26
- https://security.gentoo.org/glsa/201710-20
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.