CVE-2026-34497

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-07-31. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Johnson Controls FM Systems Employee allows Cross-Site Scripting (XSS).

This issue affects FM Systems Employee: before 2025.3.1.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity54% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

July 31, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
Patch available.
generic Patch Available

Security Advisories | Johnson Controls

https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories

Vendor Advisories for CVE-2026-34497(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 13× in last 7d / 59× 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 153 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-34497?
CVE-2026-34497 is a medium vulnerability published on July 31, 2026. Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Johnson Controls FM Systems Employee allows Cross-Site Scripting (XSS). This issue affects FM Systems Employee: before 2025.3.1.
When was CVE-2026-34497 disclosed?
CVE-2026-34497 was first published on July 31, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34497 actively exploited?
CVE-2026-34497 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34497?
CVE-2026-34497 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-34497?
A fix for CVE-2026-34497 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-34497 are linked in the Vendor Advisories panel on this page.

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