CVE-2018-15708

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 89%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 89%CVSS: 9.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated attackers to execute arbitrary commands via a crafted HTTP request.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
84(Track*)
EG Risk 84/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation89% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
89%
EPSS %ILE
100%
KEV
Not listed

Published

November 14, 2018

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Aug 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

[R2] Nagios XI Multiple Vulnerabilities - Research Advisory | Tenable®

https://www.tenable.com/security/research/tra-2018-37
generic🟡 PoC Available

Nagios XI 5.5.6 - Remote Code Execution / Privilege Escalation - Linux webapps Exploit

https://www.exploit-db.com/exploits/46221/
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/153433/Nagios-XI-Magpie_debug.php-Root-Remote-Code-Execution.html

Data Freshness Timeline

(refreshed 1× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-19 17:00 UTCEPSS rescore
  2. 2026-08-13 21:56 UTCEPSS rescore
  3. 2026-08-11 13:36 UTCEPSS rescore
  4. 2026-08-08 16:32 UTCEPSS rescore
  5. 2026-08-07 16:22 UTCEPSS rescore
  6. 2026-07-30 01:27 UTCEPSS rescore
  7. 2026-07-28 15:32 UTCEPSS rescore
  8. 2026-07-24 14:14 UTCEPSS rescore
  9. 2026-07-23 01:33 UTCEG score recompute
  10. 2026-07-22 22:14 UTCEG score recompute
  11. 2026-07-22 14:04 UTCEPSS rescore
  12. 2026-07-15 16:55 UTCEPSS rescore
  13. 2026-07-06 16:24 UTCEPSS rescore
  14. 2026-07-06 16:24 UTCEPSS rescore
  15. 2026-07-01 15:03 UTCEPSS rescore
  16. 2026-07-01 15:03 UTCEPSS rescore
  17. 2026-06-25 13:47 UTCEPSS rescore
  18. 2026-06-25 13:47 UTCEPSS rescore
  19. 2026-06-23 21:30 UTCEPSS rescore
  20. 2026-06-15 17:45 UTCEPSS rescore
  21. 2026-06-12 23:09 UTCEPSS rescore
  22. 2026-06-10 22:16 UTCEPSS rescore
  23. 2026-06-06 13:45 UTCEPSS rescore
  24. 2026-06-06 13:45 UTCEPSS rescore
  25. 2026-06-05 22:45 UTCEPSS rescore
Show 14 more
  1. 2026-06-05 22:44 UTCEPSS rescore
  2. 2026-05-31 22:29 UTCEPSS rescore
  3. 2026-05-31 22:28 UTCEPSS rescore
  4. 2026-05-28 13:42 UTCEPSS rescore
  5. 2026-05-28 13:42 UTCEPSS rescore
  6. 2026-05-28 01:07 UTCEG score recompute
  7. 2026-05-28 01:07 UTCGHSA enrichment
  8. 2026-05-27 13:38 UTCEPSS rescore
  9. 2026-05-27 13:38 UTCEPSS rescore
  10. 2026-05-26 13:42 UTCEPSS rescore
  11. 2026-05-26 13:42 UTCEPSS rescore
  12. 2026-05-26 07:17 UTCEPSS rescore
  13. 2026-05-26 07:17 UTCEPSS rescore
  14. 2026-05-24 12:51 UTCOSV refresh

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-47039✓ verified
    First seen Jun 26, 2019

    Nagios XI 5.5.6 - Magpie_debug.php Root Remote Code Execution (Metasploit)

    Open source ↗
  • Exploit-DBEDB-46221
    First seen Jan 23, 2019

    Nagios XI 5.5.6 - Remote Code Execution / Privilege Escalation

    Open source ↗
  • Metasploitexploit/linux/http/nagios_xi_magpie_debug✓ verified
    First seen Nov 14, 2018

    Nagios XI Magpie_debug.php Root Remote Code Execution

    Open source ↗

Frequently asked(5)

What is CVE-2018-15708?
CVE-2018-15708 is a critical vulnerability published on November 14, 2018. Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated attackers to execute arbitrary commands via a crafted HTTP request.
When was CVE-2018-15708 disclosed?
CVE-2018-15708 was first published in the National Vulnerability Database on November 14, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-15708 actively exploited?
CVE-2018-15708 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89% probability of exploitation in the next 30 days, which ranks it in the top 0.2% of all scored CVEs.
What is the CVSS score of CVE-2018-15708?
CVE-2018-15708 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-15708?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15708, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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