Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2016-8641

29
FAUCET Score

CVE-2016-8641 describes a local privilege escalation vulnerability in Nagios 4.2.x, specifically within the daemon-init.in script. A local attacker with low privileges can exploit this by creating symbolic links before the script creates necessary files, leading to an insecure ownership change that grants them elevated privileges. With a CVSS score of 7.8 (High), this vulnerability allows for full confidentiality, integrity, and availability impact. While not observed in active exploitation (KEV), public exploit code (EDB-40774) exists, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:a:nagios:nagios:4.2.0:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:a:nagios:nagios:4.2.1:*:*:*:*:*:*:*
4.2.2CPE matchmatch criteria
cpe:2.3:a:nagios:nagios:4.2.2:*:*:*:*:*:*:*
4.2.3CPE matchmatch criteria
cpe:2.3:a:nagios:nagios:4.2.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.7MEDIUM

CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-40774 · Nov 18, 2016
This CVE's current EPSS score of 0.0114 is in the 93rd percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: nagios
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: nagios
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: nagios
redhatend of lifevia redhat_api
Product: Red Hat Storage 3Fixed in: nagios

Vendor Advisories (1)

redhatCVE-2016-8641Moderate

nagios: Unsafe ownership change leading to privilege escalation

Nov 22, 2016

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / NagiosEnterprises/nagioscore/commit/f2ed227673d3b2da643eb5cad26b2d87674f28c1.patch
PatchThird Party Advisory
security.gentoo.org / glsa/201702-26
Third Party Advisory
exploit-db.com / exploits/40774
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/95121
Third Party AdvisoryVDB Entry