CVE-2026-20200

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. The CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:cisco, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.  This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. 

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
53rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (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 5, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
🔬 Proof of concept available. No fix on record yet.
generic🟡 PoC Available

Cisco Integrated Management Controller Argument Injection Vulnerabilities

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU

Vendor Advisories for CVE-2026-20200(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 82× 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 215 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-20200?
CVE-2026-20200 is a high vulnerability published on August 5, 2026. A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.  This vulnerability is due to improper…
When was CVE-2026-20200 disclosed?
CVE-2026-20200 was first published on August 5, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20200 actively exploited?
CVE-2026-20200 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20200?
CVE-2026-20200 has a CVSS base score of 8.8 (the CNA's own assessment, by cisco; NVD's own analysis pending).
How do I remediate CVE-2026-20200?
No fix for CVE-2026-20200 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-2026-20200 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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