CVE-2018-25117

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 66% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:vulncheck, epss
Elevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: Elevated riskExposed: 0

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

VestaCP commit a3f0fa1 (2018-05-31) up to commit ee03eff (2018-06-13) contain embedded malicious code that resulted in a supply-chain compromise. New installations created from the compromised installer since at least May 2018 were subject to installation of Linux/ChachaDDoS, a multi-stage DDoS bot that uses Lua for second- and third-stage components. The compromise leaked administrative credentials (base64-encoded admin password and server domain) to an external URL during installation and/or resulted in the installer dropping and executing a DDoS malware payload under local system privileges. Compromised servers were subsequently observed participating in large-scale DDoS activity. Vesta acknowledged exploitation in the wild in October 2018.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: 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
Severity93% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

October 15, 2025

Last Modified

June 23, 2026

Advisory Details (6)

Auto-updated Sep 15, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github_commit.
generic🔴 Active Exploitation

VestaCP Debian Installer Malicious Backdoor Supply Chain Compromise | Advisories | VulnCheck

https://www.vulncheck.com/advisories/vestacp-debian-installer-malicious-backdoor-supply-chain-compromise
generic

GitHub - outroll/vesta: VESTA Control Panel · GitHub

https://github.com/outroll/vesta
generic

Vesta Control Panel

https://vestacp.com/
github_commit Patch Available

commit a3f0fa1501d4 (outroll/vesta)

Patch available: outroll/vesta 0.9.8-24 (contains commit a3f0fa1501d4)

https://github.com/outroll/vesta/commit/a3f0fa1501d424477786e3e7150bb05c0b99518f#diff-df8da0c91e9086454c60cd468849630dR1256
github_commit Patch Available

commit ee03eff016e0 (outroll/vesta)

Patch available: outroll/vesta 0.9.8-24 (contains commit ee03eff016e0)

https://github.com/outroll/vesta/commit/ee03eff016e03cb76fac7ae3a0f9d1ef0f8ee35b#diff-df8da0c91e9086454c60cd468849630dL1270
generic

VestaCP compromised in a new supply-chain attack

https://www.welivesecurity.com/2018/10/18/new-linux-chachaddos-malware-distributed-servers-vestacp-installed/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 194 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2018-25117?
CVE-2018-25117 is a critical vulnerability published on October 15, 2025. VestaCP commit a3f0fa1 (2018-05-31) up to commit ee03eff (2018-06-13) contain embedded malicious code that resulted in a supply-chain compromise. New installations created from the compromised installer since at least May 2018 were subject to installation of Linux/ChachaDDoS, a multi-stage DDoS bot…
When was CVE-2018-25117 disclosed?
CVE-2018-25117 was first published in the National Vulnerability Database on October 15, 2025, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-25117 actively exploited?
CVE-2018-25117 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 62.3% of all scored CVEs.
What is the CVSS score of CVE-2018-25117?
CVE-2018-25117 has a CVSS v4.0 base score of 9.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2018-25117?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25117, 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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