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%CVSS: 5.4Exploit: None knownExposed: 0

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

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
5.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

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 15× 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.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-09-18 08:15 UTCEG score recompute
  2. 2026-09-18 08:15 UTCGHSA enrichment
  3. 2026-09-17 19:30 UTCEPSS rescore
  4. 2026-09-17 07:03 UTCEG score recompute
  5. 2026-09-17 07:03 UTCGHSA enrichment
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 05:28 UTCEG score recompute
  8. 2026-09-16 05:27 UTCGHSA enrichment
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 03:11 UTCEPSS rescore
  11. 2026-09-14 14:48 UTCEG score recompute
  12. 2026-09-14 14:48 UTCGHSA enrichment
  13. 2026-09-13 16:47 UTCEPSS rescore
  14. 2026-09-13 13:36 UTCEG score recompute
  15. 2026-09-13 13:36 UTCGHSA enrichment
  16. 2026-09-12 15:01 UTCEPSS rescore
  17. 2026-09-12 12:24 UTCEG score recompute
  18. 2026-09-12 12:24 UTCGHSA enrichment
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-11 09:37 UTCEPSS rescore
  21. 2026-09-11 09:26 UTCEG score recompute
  22. 2026-09-11 09:26 UTCGHSA enrichment
  23. 2026-09-10 09:34 UTCEPSS rescore
  24. 2026-09-10 08:14 UTCGHSA enrichment
  25. 2026-09-09 07:02 UTCEG score recompute
Show 75 more
  1. 2026-09-09 07:02 UTCGHSA enrichment
  2. 2026-09-08 22:00 UTCEPSS rescore
  3. 2026-09-07 19:30 UTCEG score recompute
  4. 2026-09-07 19:30 UTCGHSA enrichment
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-06 05:56 UTCEG score recompute
  8. 2026-09-06 05:56 UTCGHSA enrichment
  9. 2026-09-05 04:41 UTCEG score recompute
  10. 2026-09-05 04:41 UTCGHSA enrichment
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-03 21:10 UTCGHSA enrichment
  13. 2026-09-02 08:11 UTCEG score recompute
  14. 2026-09-02 08:11 UTCGHSA enrichment
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-09-01 00:43 UTCGHSA enrichment
  17. 2026-08-30 23:31 UTCEG score recompute
  18. 2026-08-30 23:31 UTCGHSA enrichment
  19. 2026-08-30 19:17 UTCEPSS rescore
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-29 22:19 UTCEG score recompute
  22. 2026-08-29 22:19 UTCGHSA enrichment
  23. 2026-08-28 21:41 UTCEPSS rescore
  24. 2026-08-27 15:10 UTCEG score recompute
  25. 2026-08-27 15:10 UTCGHSA enrichment
  26. 2026-08-27 14:25 UTCEPSS rescore
  27. 2026-08-26 14:46 UTCEPSS rescore
  28. 2026-08-26 13:58 UTCEG score recompute
  29. 2026-08-26 13:58 UTCGHSA enrichment
  30. 2026-08-25 13:49 UTCEPSS rescore
  31. 2026-08-25 12:47 UTCEG score recompute
  32. 2026-08-25 12:47 UTCGHSA enrichment
  33. 2026-08-24 11:35 UTCEG score recompute
  34. 2026-08-24 11:35 UTCGHSA enrichment
  35. 2026-08-23 10:23 UTCEG score recompute
  36. 2026-08-23 10:23 UTCGHSA enrichment
  37. 2026-08-23 00:19 UTCEPSS rescore
  38. 2026-08-22 09:03 UTCEG score recompute
  39. 2026-08-22 09:03 UTCGHSA enrichment
  40. 2026-08-21 23:49 UTCEPSS rescore
  41. 2026-08-21 07:51 UTCEG score recompute
  42. 2026-08-21 07:51 UTCGHSA enrichment
  43. 2026-08-20 22:55 UTCEPSS rescore
  44. 2026-08-20 22:55 UTCEPSS rescore
  45. 2026-08-20 06:39 UTCEG score recompute
  46. 2026-08-20 06:39 UTCGHSA enrichment
  47. 2026-08-19 17:03 UTCEPSS rescore
  48. 2026-08-19 05:26 UTCEG score recompute
  49. 2026-08-19 05:26 UTCGHSA enrichment
  50. 2026-08-18 13:48 UTCEPSS rescore
  51. 2026-08-18 04:14 UTCEG score recompute
  52. 2026-08-18 04:14 UTCGHSA enrichment
  53. 2026-08-17 13:47 UTCEPSS rescore
  54. 2026-08-17 02:59 UTCEG score recompute
  55. 2026-08-17 02:59 UTCGHSA enrichment
  56. 2026-08-16 14:56 UTCEPSS rescore
  57. 2026-08-16 02:14 UTCEPSS rescore
  58. 2026-08-16 01:47 UTCEG score recompute
  59. 2026-08-16 01:47 UTCGHSA enrichment
  60. 2026-08-15 01:30 UTCEPSS rescore
  61. 2026-08-15 00:34 UTCGHSA enrichment
  62. 2026-08-13 23:23 UTCEG score recompute
  63. 2026-08-13 23:23 UTCGHSA enrichment
  64. 2026-08-13 22:00 UTCEPSS rescore
  65. 2026-08-12 22:11 UTCEG score recompute
  66. 2026-08-12 22:11 UTCGHSA enrichment
  67. 2026-08-12 13:50 UTCEPSS rescore
  68. 2026-08-11 20:59 UTCEG score recompute
  69. 2026-08-11 20:59 UTCGHSA enrichment
  70. 2026-08-11 00:00 UTCEPSS rescore
  71. 2026-08-10 19:47 UTCEG score recompute▲ 0.60
  72. 2026-08-10 19:47 UTCGHSA enrichment
  73. 2026-08-10 19:47 UTCNVD updateCVSS v3 → 5.4
  74. 2026-08-09 19:26 UTCEG score recompute
  75. 2026-08-09 19:26 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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 96.4% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34497, 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.

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