CVE-2026-59567

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026

Vendor Advisories for CVE-2026-59567(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 26× in last 7d / 101× 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 101 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-59567?
CVE-2026-59567 is a high vulnerability published on August 24, 2026. Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.
When was CVE-2026-59567 disclosed?
CVE-2026-59567 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59567 actively exploited?
CVE-2026-59567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.0% of all scored CVEs.
What is the CVSS score of CVE-2026-59567?
CVE-2026-59567 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-59567?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59567, 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

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