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CVE-2018-15708

90
FAUCET Score

CVE-2018-15708 is a critical remote code execution vulnerability affecting Nagios XI version 5.5.6, specifically within the Snoopy 1.0 component. This flaw allows unauthenticated attackers to execute arbitrary commands through a crafted HTTP request, earning a CVSS score of 9.8. Its high EPSS score and FAUCET Risk Score of 100 indicate a significant likelihood of exploitation and severe impact, including complete compromise of confidentiality, integrity, and availability. While not on the CISA KEV catalog, multiple public exploit modules exist, including a Metasploit module and ExploitDB entries, demonstrating readily available exploitation tools. Despite the high severity and exploit availability, there is no recorded community discussion or media coverage, which is typical for a large percentage of CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
5.5.6CPE matchmatch criteria
cpe:2.3:a:nagios:nagios_xi:5.5.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
89.36%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Nagios XI Magpie_debug.php Root Remote Code Execution · Nov 14, 2018
ExploitDB: EDB-47039 · Jun 26, 2019
This CVE's current EPSS score of 0.8936 is in the 99th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

Vendor Patches (3)

dogukanurkervendor investigatingvia llm_extracted
posthogvendor investigatingvia llm_extracted
qlikvendor investigatingvia llm_extracted

Vendor Advisories (3)

dogukanurkerllm-dogukanurker-870a9e7eabc79aa0HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018
qlikllm-qlik-755ce6d1011394b1HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018
posthogllm-posthog-f5f4a45be457c255HIGH

[R2] Nagios XI Multiple Vulnerabilities

Nov 13, 2018

References

packetstormsecurity.com / files/153433/Nagios-XI-Magpie_debug.php-Root-Remote-Code-Execution.html
exploit-db.com / exploits/46221
ExploitThird Party AdvisoryVDB Entry
tenable.com / security/research/tra-2018-37
ExploitThird Party Advisory