CVE-2026-18811

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-04. A secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.6%CVSS: 7.2Exploit: Elevated riskExposed services: Not assessed

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

A vulnerability was detected in H3C NX15 V100R017. The affected element is the function Add of the file /api/esps. Performing a manipulation of the argument esps.filter.url results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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
Severity72% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
3.6%
EPSS %ILE
89th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

IOT_Vul_Public/H3C/NX15R017/esps_filter_url_add_root_rce at main · coconut652-7/IOT_Vul_Public · GitHub

https://github.com/coconut652-7/IOT_Vul_Public/tree/main/H3C/NX15R017/esps_filter_url_add_root_rce

Vendor Advisories for CVE-2026-18811(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 85× 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 211 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18811?
CVE-2026-18811 is a high vulnerability published on August 4, 2026. A vulnerability was detected in H3C NX15 V100R017. The affected element is the function Add of the file /api/esps. Performing a manipulation of the argument esps.filter.url results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. The…
When was CVE-2026-18811 disclosed?
CVE-2026-18811 was first published on August 4, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18811 actively exploited?
CVE-2026-18811 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.6% probability of exploitation in the next 30 days (89th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18811?
CVE-2026-18811 has a CVSS base score of 7.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18811?
No fix for CVE-2026-18811 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-18811 are linked in the Vendor Advisories panel on this page.

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