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Fencer Intel
critical 9.8

CVE-2016-9565 in the critical feed json

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…

published 2016-12-15 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10371

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
22.7%
EPSS 22.7% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • nagios storage 3.1, openstack 7, openstack 6 +1 more 3.5.1-9.el7
  • nagios-common storage 3.1, openstack 7, openstack 6 +1 more 3.5.1-9.el7
  • nagios storage 3.1, openstack 5 3.5.1-9.el6
  • nagios-common storage 3.1, openstack 5 3.5.1-9.el6

red hat advisories RHSA-2017:0258RHSA-2017:0259RHSA-2017:0211RHSA-2017:0214RHSA-2017:0213RHSA-2017:0212

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-9565 updated cvss 8.1

nagios: Command injection via curl in MagpieRSS

  • Red Hat Mobile Application Platform 4 nagios
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 nagios 3.5.1-9.el6, nagios-common 3.5.1-9.el6
    fixed: vendor fix RHSA-2017:0212
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 nagios 3.5.1-9.el7, nagios-common 3.5.1-9.el7
    fixed: vendor fix RHSA-2017:0211
  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 nagios 3.5.1-9.el7, nagios-common 3.5.1-9.el7
    fixed: vendor fix RHSA-2017:0213
  • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 nagios 3.5.1-9.el7, nagios-common 3.5.1-9.el7
    fixed: vendor fix RHSA-2017:0214
  • Red Hat Gluster Storage Nagios 3.1 on RHEL-6 nagios 3.5.1-9.el6, nagios-common 3.5.1-9.el6
    fixed: vendor fix RHSA-2017:0259
  • Red Hat Gluster Storage Nagios 3.1 on RHEL-7 nagios 3.5.1-9.el7, nagios-common 3.5.1-9.el7
    fixed: vendor fix RHSA-2017:0258
  • Red Hat Gluster Storage Server 3.1 on RHEL-6 nagios 3.5.1-9.el6, nagios-common 3.5.1-9.el6
    fixed: vendor fix RHSA-2017:0259
show 2 more
  • Red Hat Gluster Storage Server 3.1 on RHEL-7 nagios 3.5.1-9.el7, nagios-common 3.5.1-9.el7
    fixed: vendor fix RHSA-2017:0258
  • Red Hat OpenStack Platform 8 (Liberty) nagios Red Hat OpenStack Platform 9 (Mitaka) nagios Red Hat OpenStack Platform 10 (Newton) nagios
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-40920)
  2. Published

Exploit prediction

22.68% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-40920 Nagios < 4.2.2 - Arbitrary Code Execution remote, 2016-12-15
  • packetstormsecurity.com http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
  • legalhackers.com https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.