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CVE-2018-13458

30
FAUCET Score

CVE-2018-13458 is a NULL pointer dereference vulnerability in qh_core of Nagios Core 4.4.1 and earlier, allowing a local denial-of-service. With a CVSS score of 5.5 (Medium), it requires local access and user interaction (sending a crafted payload to a UNIX socket) to achieve high availability impact. While not actively exploited in the wild or on the KEV catalog, a public exploit (EDB-45082) exists, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.4.1CPE matchmatch criteria
cpe:2.3:a:nagios:nagios_core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.51%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-45082 · Jul 24, 2018
This CVE's current EPSS score of 0.0451 is in the 96th percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-13458Low

nagios: NULL pointer dereference in qh_core in base/query-handler.c

Jul 19, 2018

References

lists.opensuse.org / opensuse-security-announce/2020-04/msg00014.html
lists.opensuse.org / opensuse-security-announce/2020-04/msg00022.html
gist.github.com / fakhrizulkifli/40f3daf52950cca6de28ebec2498ff6e
ExploitThird Party Advisory
knowledge.opsview.com / v5.3/docs/whats-new
Third Party Advisory
knowledge.opsview.com / v5.4/docs/whats-new
Third Party Advisory
exploit-db.com / exploits/45082
ExploitThird Party AdvisoryVDB Entry