CVE-2026-34223

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. A secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.2Exploit: 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 has been identified in Desigo CC ClickOnce Client V6 (All versions), Desigo CC ClickOnce Client V7 (All versions), Desigo CC family V8 (All versions), Desigo CC family V9 (All versions), Desigo CC Flex Client V6 (All versions), Desigo CC Flex Client V7 (All versions), Desigo CC Installed Client V6 (All versions), Desigo CC Installed Client V7 (All versions). The affected application is vulnerable to Client Code Execution (CCE) due to insufficient input validation when handling scripts embedded within user-defined graphics documents. Specifically, when the script within a graphics document is designed or modified by an attacker to include malicious commands. When a user opens a compromised graphics document, the embedded script is executed on the client application instance, allowing an attacker to write arbitrary files to the client's operating system. Successful exploitation requires an attacker to craft a malicious graphics document and entice a user with sufficient privileges to display it. This could lead to compromise of the client operating system and potential lateral movement within the organization.

CVSS v3
8.2
EG Score
8.2HIGHhigh confidence
EG Risk
37
EG Risk 37/100CISA 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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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 total (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 8, 2026

Last Modified

September 14, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

SSA-330084

https://cert-portal.siemens.com/productcert/html/ssa-330084.html

Vendor Advisories for CVE-2026-34223(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 / 109× 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 109 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-34223?
CVE-2026-34223 is a high vulnerability published on September 8, 2026. A vulnerability has been identified in Desigo CC ClickOnce Client V6 (All versions), Desigo CC ClickOnce Client V7 (All versions), Desigo CC family V8 (All versions), Desigo CC family V9 (All versions), Desigo CC Flex Client V6 (All versions), Desigo CC Flex Client V7 (All versions), Desigo CC…
When was CVE-2026-34223 disclosed?
CVE-2026-34223 was first published on September 8, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34223 actively exploited?
CVE-2026-34223 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34223?
CVE-2026-34223 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-34223?
No fix for CVE-2026-34223 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-2026-34223 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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