CVE-2026-20191

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container.  This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

July 1, 2026

Last Modified

September 17, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic

Cisco Catalyst Center Arbitrary File Read Vulnerability

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-file-read-wLH2vf8X

Vendor Advisories for CVE-2026-20191(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 11× in last 7d / 57× 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 224 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-20191?
CVE-2026-20191 is a high vulnerability published on July 1, 2026. A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container.  This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP…
When was CVE-2026-20191 disclosed?
CVE-2026-20191 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20191 actively exploited?
CVE-2026-20191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.4% of all scored CVEs.
What is the CVSS score of CVE-2026-20191?
CVE-2026-20191 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-20191?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20191, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-20191

Explore →

Is Your Infrastructure Affected by CVE-2026-20191?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs