CVE-2026-33388

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.4 from GitHub Security Advisory published 2026-09-08. A secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.4Exploit: None knownExposed services: Not assessed

Upgrade to v26.3.0 or later (from the CVE record's solution, Nozomi Networks Inc.) — apply it.

An access control vulnerability was discovered in the Credentials Manager functionality due to insufficient validation of user privileges. A remote authenticated user with limited privileges can view a limited subset of the available entries in the Credentials Manager. The actual credential values are not directly visible, but the user can delete entries or edit their properties. An attacker who deletes or edits an entry can disrupt authentication for dependent devices, and one who manipulates an entry's configuration may be able to indirectly obtain the credentials.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100

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 (value × EchelonGraph’s weight)
Severity74% × 45%
The EG Score, 7.4 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: Upgrade to v26.3.0 or later (from the CVE record's solution, Nozomi Networks Inc.). Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
32nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

Upgrade to v26.3.0 or later (from the CVE record's solution, Nozomi Networks Inc.). Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 8, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
Fix named in the CVE record's solution (Nozomi Networks Inc.).
Web page

NN-2026:19-01 - Incorrect authorization in Credentials Manager in Guardian/CMC before 26.3.0 - CVE-2026-33388 | Product Security Incident Response Portal

https://security.nozominetworks.com/NN-2026:19-01

Vendor Advisories for CVE-2026-33388(1)

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 23× in last 7d / 104× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 126 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 27 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  2. 2026-10-12 16:13 UTCEG score recompute
  3. 2026-10-11 19:55 UTCEG score recompute
  4. 2026-10-11 16:51 UTCEG score recompute
  5. 2026-10-11 16:51 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  6. 2026-10-11 14:36 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-10 11:07 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  10. 2026-10-09 22:35 UTCEG score recompute
  11. 2026-10-09 22:35 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-09 00:41 UTCEG score recompute
  14. 2026-10-09 00:41 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  15. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-08 01:39 UTCEG score recompute
  17. 2026-10-08 01:39 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  18. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  19. 2026-10-07 13:05 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  20. 2026-10-06 23:33 UTCEG score recompute
  21. 2026-10-06 23:33 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-06 11:02 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  24. 2026-10-05 22:31 UTCEG score recompute
  25. 2026-10-05 22:31 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
Show 74 more
  1. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-05 09:14 UTCEG score recompute
  3. 2026-10-05 09:14 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  4. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-10-04 20:38 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  6. 2026-10-04 08:06 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  7. 2026-10-03 19:28 UTCEG score recompute
  8. 2026-10-03 19:28 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  9. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-03 06:57 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  11. 2026-10-02 18:25 UTCEG score recompute
  12. 2026-10-02 18:25 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  13. 2026-10-02 05:54 UTCEG score recompute
  14. 2026-10-02 05:54 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  15. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-01 16:15 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  17. 2026-10-01 03:44 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  18. 2026-09-30 15:13 UTCEG score recompute
  19. 2026-09-30 15:13 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-09-30 02:22 UTCEG score recompute
  22. 2026-09-30 02:22 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  23. 2026-09-29 09:15 UTCEG score recompute
  24. 2026-09-29 09:15 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  25. 2026-09-28 20:34 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  26. 2026-09-28 07:02 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  27. 2026-09-27 18:28 UTCEG score recompute
  28. 2026-09-27 18:28 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  29. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  30. 2026-09-27 05:56 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  31. 2026-09-26 17:24 UTCEG score recompute
  32. 2026-09-26 17:24 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  33. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  34. 2026-09-26 04:52 UTCEG score recompute
  35. 2026-09-26 04:52 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  36. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  37. 2026-09-25 16:20 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  38. 2026-09-25 03:49 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  39. 2026-09-24 15:18 UTCEG score recompute
  40. 2026-09-24 15:18 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  41. 2026-09-24 02:37 UTCEG score recompute
  42. 2026-09-24 02:37 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  43. 2026-09-23 14:05 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  44. 2026-09-23 01:34 UTCEG score recompute
  45. 2026-09-23 01:34 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  46. 2026-09-22 13:02 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  47. 2026-09-22 00:31 UTCEG score recompute
  48. 2026-09-22 00:31 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  49. 2026-09-21 12:00 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  50. 2026-09-20 23:29 UTCEG score recompute
  51. 2026-09-20 23:29 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  52. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  53. 2026-09-20 10:57 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  54. 2026-09-19 22:26 UTCEG score recompute
  55. 2026-09-19 22:26 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  56. 2026-09-19 09:54 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  57. 2026-09-18 21:22 UTCEG score recompute
  58. 2026-09-18 21:22 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  59. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  60. 2026-09-18 08:51 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  61. 2026-09-17 20:19 UTCEG score recompute
  62. 2026-09-17 20:19 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  63. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  64. 2026-09-17 06:49 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  65. 2026-09-16 18:18 UTCEG score recompute
  66. 2026-09-16 18:18 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  67. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  68. 2026-09-16 05:29 UTCEG score recompute
  69. 2026-09-16 05:29 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  70. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  71. 2026-09-15 16:58 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  72. 2026-09-15 04:27 UTCEG score recompute
  73. 2026-09-15 04:27 UTCGHSA enrichmentGHSA-6rjw-mcjc-47ch · GitHub CVSS 7.4
  74. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 20th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-33388?
CVE-2026-33388 is a high-severity vulnerability; its CVE record was published on September 8, 2026. An access control vulnerability was discovered in the Credentials Manager functionality due to insufficient validation of user privileges. A remote authenticated user with limited privileges can view a limited subset of the available entries in the Credentials Manager. The actual credential values…
When was CVE-2026-33388 made public?
CVE-2026-33388 was made public on September 8, 2026: that is the date its CVE record's CNA, Nozomi Networks Inc., gives for when the vulnerability was made public. The CVE record itself was published on September 8, 2026. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-33388 actively exploited?
CVE-2026-33388 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33388?
CVE-2026-33388 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-33388?
The CVE record's solution for CVE-2026-33388, written by its CNA Nozomi Networks Inc., names the fix: "Upgrade to v26.3.0 or later." The vendor advisories EchelonGraph has for CVE-2026-33388 are linked in the Vendor Advisories panel on this page.

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