CVE-2018-9276

HIGHNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-02-04), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.2 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
7.2
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 87%CVSS: 7.2Exploit: NoneExposed: 0

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

An issue was discovered in PRTG Network Monitor before 18.2.39. An attacker who has access to the PRTG System Administrator web console with administrative privileges can exploit an OS command injection vulnerability (both on the server and on devices) by sending malformed parameters in sensor or notification management scenarios.

CVSS v3
7.2
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.7%
KEV
⚠ Exploited

Published

July 2, 2018

Last Modified

November 6, 2025

Advisory Details (5)

Auto-updated Jun 11, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-9276
generic
http://www.securityfocus.com/archive/1/542103/100/0/threaded
generic

Packet Storm

http://packetstormsecurity.com/files/161183/PRTG-Network-Monitor-Remote-Code-Execution.html
generic

Packet Storm

http://packetstormsecurity.com/files/148334/PRTG-Command-Injection.html
generic🟡 PoC Available

PRTG Network Monitor 18.2.38 - (Authenticated) Remote Code Execution - Windows webapps Exploit

https://www.exploit-db.com/exploits/46527/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 41× in last 7d / 188× 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.

Showing the most recent 100 of 360 total refreshes for this CVE.

  1. 2026-07-23 01:37 UTCEG score recompute
  2. 2026-07-22 23:08 UTCGHSA enrichment
  3. 2026-07-22 22:18 UTCEG score recompute
  4. 2026-07-22 19:40 UTCCISA KEV update
  5. 2026-07-22 18:44 UTCGHSA enrichment
  6. 2026-07-22 14:20 UTCEG score recompute
  7. 2026-07-22 14:20 UTCGHSA enrichment
  8. 2026-07-22 14:05 UTCEPSS rescore
  9. 2026-07-22 09:56 UTCGHSA enrichment
  10. 2026-07-22 05:33 UTCGHSA enrichment
  11. 2026-07-22 01:10 UTCGHSA enrichment
  12. 2026-07-21 20:46 UTCGHSA enrichment
  13. 2026-07-21 16:23 UTCEG score recompute
  14. 2026-07-21 16:23 UTCGHSA enrichment
  15. 2026-07-21 15:22 UTCEPSS rescore
  16. 2026-07-21 14:37 UTCCISA KEV update
  17. 2026-07-21 11:58 UTCGHSA enrichment
  18. 2026-07-21 07:32 UTCGHSA enrichment
  19. 2026-07-21 03:09 UTCGHSA enrichment
  20. 2026-07-20 22:45 UTCGHSA enrichment
  21. 2026-07-20 18:22 UTCGHSA enrichment
  22. 2026-07-20 13:58 UTCGHSA enrichment
  23. 2026-07-20 09:35 UTCGHSA enrichment
  24. 2026-07-20 05:12 UTCGHSA enrichment
  25. 2026-07-19 20:27 UTCGHSA enrichment
Show 75 more
  1. 2026-07-19 16:04 UTCGHSA enrichment
  2. 2026-07-19 11:39 UTCGHSA enrichment
  3. 2026-07-19 07:16 UTCGHSA enrichment
  4. 2026-07-19 02:53 UTCGHSA enrichment
  5. 2026-07-18 22:30 UTCGHSA enrichment
  6. 2026-07-18 18:07 UTCGHSA enrichment
  7. 2026-07-18 13:43 UTCGHSA enrichment
  8. 2026-07-18 09:20 UTCGHSA enrichment
  9. 2026-07-18 04:57 UTCGHSA enrichment
  10. 2026-07-18 00:34 UTCGHSA enrichment
  11. 2026-07-17 20:11 UTCGHSA enrichment
  12. 2026-07-17 15:48 UTCGHSA enrichment
  13. 2026-07-17 11:25 UTCGHSA enrichment
  14. 2026-07-17 07:02 UTCEG score recompute
  15. 2026-07-17 07:02 UTCGHSA enrichment
  16. 2026-07-17 02:38 UTCGHSA enrichment
  17. 2026-07-16 22:15 UTCGHSA enrichment
  18. 2026-07-16 17:53 UTCGHSA enrichment
  19. 2026-07-16 17:04 UTCCISA KEV update
  20. 2026-07-16 13:30 UTCGHSA enrichment
  21. 2026-07-16 09:06 UTCGHSA enrichment
  22. 2026-07-16 04:43 UTCGHSA enrichment
  23. 2026-07-16 00:20 UTCGHSA enrichment
  24. 2026-07-15 19:58 UTCGHSA enrichment
  25. 2026-07-15 16:55 UTCEPSS rescore
  26. 2026-07-15 16:49 UTCCISA KEV update
  27. 2026-07-15 15:35 UTCGHSA enrichment
  28. 2026-07-15 15:04 UTCCISA KEV update
  29. 2026-07-15 11:13 UTCGHSA enrichment
  30. 2026-07-15 06:50 UTCGHSA enrichment
  31. 2026-07-15 02:27 UTCGHSA enrichment
  32. 2026-07-14 22:04 UTCGHSA enrichment
  33. 2026-07-14 18:05 UTCCISA KEV update
  34. 2026-07-14 17:39 UTCGHSA enrichment
  35. 2026-07-14 13:16 UTCGHSA enrichment
  36. 2026-07-14 08:51 UTCGHSA enrichment
  37. 2026-07-14 04:27 UTCGHSA enrichment
  38. 2026-07-14 00:03 UTCGHSA enrichment
  39. 2026-07-13 19:41 UTCGHSA enrichment
  40. 2026-07-13 17:07 UTCCISA KEV update
  41. 2026-07-13 15:17 UTCGHSA enrichment
  42. 2026-07-13 10:54 UTCGHSA enrichment
  43. 2026-07-13 06:32 UTCGHSA enrichment
  44. 2026-07-13 06:10 UTCEPSS rescore
  45. 2026-07-13 02:06 UTCGHSA enrichment
  46. 2026-07-12 21:43 UTCGHSA enrichment
  47. 2026-07-12 17:20 UTCGHSA enrichment
  48. 2026-07-12 12:57 UTCGHSA enrichment
  49. 2026-07-12 08:34 UTCGHSA enrichment
  50. 2026-07-12 05:43 UTCEPSS rescore
  51. 2026-07-12 04:10 UTCGHSA enrichment
  52. 2026-07-11 23:46 UTCGHSA enrichment
  53. 2026-07-11 19:23 UTCGHSA enrichment
  54. 2026-07-11 15:00 UTCGHSA enrichment
  55. 2026-07-11 10:37 UTCGHSA enrichment
  56. 2026-07-11 06:14 UTCGHSA enrichment
  57. 2026-07-11 01:49 UTCGHSA enrichment
  58. 2026-07-10 21:27 UTCGHSA enrichment
  59. 2026-07-10 17:52 UTCCISA KEV update
  60. 2026-07-10 17:04 UTCGHSA enrichment
  61. 2026-07-10 12:41 UTCGHSA enrichment
  62. 2026-07-10 08:19 UTCGHSA enrichment
  63. 2026-07-10 03:55 UTCGHSA enrichment
  64. 2026-07-09 23:33 UTCGHSA enrichment
  65. 2026-07-09 19:09 UTCGHSA enrichment
  66. 2026-07-09 14:44 UTCGHSA enrichment
  67. 2026-07-09 10:21 UTCGHSA enrichment
  68. 2026-07-09 05:58 UTCGHSA enrichment
  69. 2026-07-09 01:33 UTCGHSA enrichment
  70. 2026-07-08 21:08 UTCGHSA enrichment
  71. 2026-07-08 16:44 UTCGHSA enrichment
  72. 2026-07-08 12:21 UTCGHSA enrichment
  73. 2026-07-08 07:57 UTCGHSA enrichment
  74. 2026-07-08 03:34 UTCGHSA enrichment
  75. 2026-07-07 23:11 UTCGHSA enrichment

Publicly available exploits

(3 references)

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

  • GitHub PoCwildkindcc/CVE-2018-9276
    First seen Mar 31, 2019

    CVE-2018-9276 PRTG < 18.2.39 Authenticated Command Injection (Reverse Shell)

    Open source ↗
  • Exploit-DBEDB-46527
    First seen Mar 11, 2019

    PRTG Network Monitor 18.2.38 - (Authenticated) Remote Code Execution

    Open source ↗
  • Metasploitexploit/windows/http/prtg_authenticated_rce✓ verified
    First seen Jun 25, 2018

    PRTG Network Monitor Authenticated RCE

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2018-9276?
CVE-2018-9276 is a high vulnerability published on July 2, 2018. An issue was discovered in PRTG Network Monitor before 18.2.39. An attacker who has access to the PRTG System Administrator web console with administrative privileges can exploit an OS command injection vulnerability (both on the server and on devices) by sending malformed parameters in sensor or…
When was CVE-2018-9276 disclosed?
CVE-2018-9276 was first published in the National Vulnerability Database on July 2, 2018, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-9276 actively exploited?
Yes. CISA added CVE-2018-9276 to the Known Exploited Vulnerabilities catalog on February 4, 2025, affecting Paessler PRTG Network Monitor. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-9276?
CVE-2018-9276 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2018-9276?
CVE-2018-9276 affects Paessler PRTG Network Monitor. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2018-9276?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9276, 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.

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