CVE-2026-20198

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

Score 4.8 from GitHub Security Advisory published 2026-08-05. A secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.8Exploit: 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 Integrated Management Controller (IMC) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.

CVSS v3
4.8
EG Score
4.8MEDIUMmedium confidence
EG Risk
22
EG Risk 22/100CISA 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
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
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
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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 partial (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

August 6, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

Cisco Integrated Management Controller Cross-Site Scripting Vulnerability

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-7EhBFxBp

Vendor Advisories for CVE-2026-20198(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 12× in last 7d / 66× 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 146 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-20198?
CVE-2026-20198 is a medium vulnerability published on August 5, 2026. A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An…
When was CVE-2026-20198 disclosed?
CVE-2026-20198 was first published on August 5, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20198 actively exploited?
CVE-2026-20198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20198?
CVE-2026-20198 has a CVSS base score of 4.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-20198?
No fix for CVE-2026-20198 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-2026-20198 are linked in the Vendor Advisories panel on this page.

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