CVE-2026-78546

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1% (2nd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, 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: 0.1%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.

Out-of-bounds read vulnerability in Citirx Workspace app for Windows.

This issue affects Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.

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
0.1%
EPSS %ILE
2nd
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

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Sep 11, 2026
No patch confirmed yet.
generic

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https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697034&articleTitle=Citrix_Workspace_app_for_Windows_Security_Bulletin_CVE_2026_78546_and_CVE_2026_78547

Vendor Advisories for CVE-2026-78546(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 18× in last 7d / 69× 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.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 16:58 UTCGHSA enrichment
  3. 2026-10-03 18:55 UTCEG score recompute
  4. 2026-10-03 18:55 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 20:49 UTCEG score recompute
  7. 2026-10-02 20:49 UTCGHSA enrichment
  8. 2026-10-01 22:45 UTCEG score recompute
  9. 2026-10-01 22:45 UTCGHSA enrichment
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-10-01 00:48 UTCEG score recompute
  12. 2026-10-01 00:48 UTCGHSA enrichment
  13. 2026-09-30 01:48 UTCEG score recompute
  14. 2026-09-30 01:48 UTCGHSA enrichment
  15. 2026-09-29 15:24 UTCEPSS rescore
  16. 2026-09-28 20:19 UTCEG score recompute
  17. 2026-09-28 20:19 UTCGHSA enrichment
  18. 2026-09-28 13:52 UTCEPSS rescore
  19. 2026-09-27 21:35 UTCEG score recompute
  20. 2026-09-27 21:35 UTCGHSA enrichment
  21. 2026-09-27 13:48 UTCEPSS rescore
  22. 2026-09-26 23:37 UTCEG score recompute
  23. 2026-09-26 23:37 UTCGHSA enrichment
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-26 01:23 UTCEG score recompute
Show 44 more
  1. 2026-09-26 01:22 UTCGHSA enrichment
  2. 2026-09-26 00:28 UTCEPSS rescore
  3. 2026-09-25 03:24 UTCEG score recompute
  4. 2026-09-25 03:24 UTCGHSA enrichment
  5. 2026-09-24 14:04 UTCEPSS rescore
  6. 2026-09-24 05:26 UTCEG score recompute
  7. 2026-09-24 05:26 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 07:29 UTCEG score recompute
  10. 2026-09-23 07:29 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 09:31 UTCEG score recompute
  13. 2026-09-22 09:31 UTCGHSA enrichment
  14. 2026-09-21 21:09 UTCEPSS rescore
  15. 2026-09-21 11:33 UTCEG score recompute
  16. 2026-09-21 11:33 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-20 13:35 UTCEG score recompute
  19. 2026-09-20 13:35 UTCGHSA enrichment
  20. 2026-09-19 15:38 UTCEG score recompute
  21. 2026-09-19 15:38 UTCGHSA enrichment
  22. 2026-09-18 19:28 UTCEPSS rescore
  23. 2026-09-18 17:40 UTCGHSA enrichment
  24. 2026-09-17 19:42 UTCEG score recompute
  25. 2026-09-17 19:42 UTCGHSA enrichment
  26. 2026-09-16 19:23 UTCEG score recompute
  27. 2026-09-16 19:23 UTCGHSA enrichment
  28. 2026-09-16 14:08 UTCEPSS rescore
  29. 2026-09-16 10:43 UTCEG score recompute
  30. 2026-09-16 10:43 UTCGHSA enrichment
  31. 2026-09-16 05:15 UTCEPSS rescore
  32. 2026-09-15 12:40 UTCEG score recompute
  33. 2026-09-15 12:40 UTCGHSA enrichment
  34. 2026-09-15 03:12 UTCEPSS rescore
  35. 2026-09-15 03:12 UTCEPSS rescore
  36. 2026-09-14 14:40 UTCEG score recompute
  37. 2026-09-14 14:40 UTCGHSA enrichment
  38. 2026-09-13 16:42 UTCGHSA enrichment
  39. 2026-09-12 18:44 UTCEG score recompute
  40. 2026-09-12 18:44 UTCGHSA enrichment
  41. 2026-09-11 20:46 UTCEG score recompute
  42. 2026-09-11 19:44 UTCEG score recompute
  43. 2026-09-11 19:19 UTCEG score recompute
  44. 2026-09-11 19:18 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78546?
CVE-2026-78546 is a medium vulnerability published on September 11, 2026. Out-of-bounds read vulnerability in Citirx Workspace app for Windows. This issue affects Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.
When was CVE-2026-78546 disclosed?
CVE-2026-78546 was first published on September 11, 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-2026-78546 actively exploited?
CVE-2026-78546 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78546?
CVE-2026-78546 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-2026-78546?
No fix for CVE-2026-78546 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-2026-78546 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78546

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