CVE-2026-5434

✕ Withdrawn — historical dataMEDIUMNVD 5.9Trending — 3 sources updated this week
5.9CVSS
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

Honeywell Control Network Module (CNM) contains insertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing system files, potentially resulting in unintended access to protected data.

CVSS v3
5.9
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EG Score
—
EG Risk
—
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

May 21, 2026

Last Modified

May 22, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Process Automation | Honeywell

https://process.honeywell.com/

Vendor Advisories for CVE-2026-5434(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 9× in last 7d / 10× 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. 2026-08-01 17:32 UTCEG score recompute
  2. 2026-08-01 17:32 UTCGHSA enrichment
  3. 2026-08-01 04:16 UTCEPSS rescore
  4. 2026-07-30 16:28 UTCEPSS rescore
  5. 2026-07-30 01:30 UTCEPSS rescore
  6. 2026-07-30 01:30 UTCEPSS rescore
  7. 2026-07-29 18:02 UTCEG score recompute
  8. 2026-07-29 18:02 UTCGHSA enrichment
  9. 2026-07-28 15:37 UTCEPSS rescore
  10. 2026-07-23 03:19 UTCEG score recompute▼ 5.90
  11. 2026-06-29 20:13 UTCGHSA enrichment
  12. 2026-06-27 19:58 UTCGHSA enrichment
  13. 2026-06-26 19:26 UTCGHSA enrichment
  14. 2026-06-25 14:29 UTCGHSA enrichment
  15. 2026-06-17 22:39 UTCGHSA enrichment
  16. 2026-06-16 22:21 UTCGHSA enrichment
  17. 2026-06-15 22:49 UTCGHSA enrichment
  18. 2026-06-14 21:41 UTCGHSA enrichment
  19. 2026-06-13 22:09 UTCGHSA enrichment
  20. 2026-06-12 21:13 UTCGHSA enrichment
  21. 2026-06-11 21:39 UTCGHSA enrichment
  22. 2026-06-10 22:07 UTCGHSA enrichment
  23. 2026-06-09 22:35 UTCGHSA enrichment
  24. 2026-06-08 23:03 UTCGHSA enrichment
  25. 2026-06-07 23:30 UTCGHSA enrichment
Show 25 more
  1. 2026-06-06 23:58 UTCGHSA enrichment
  2. 2026-06-06 00:25 UTCGHSA enrichment
  3. 2026-06-05 00:53 UTCGHSA enrichment
  4. 2026-06-04 01:21 UTCGHSA enrichment
  5. 2026-06-03 01:49 UTCGHSA enrichment
  6. 2026-06-02 20:13 UTCEPSS rescore
  7. 2026-06-02 02:17 UTCGHSA enrichment
  8. 2026-06-01 13:52 UTCEPSS rescore
  9. 2026-06-01 13:52 UTCEPSS rescore
  10. 2026-06-01 02:44 UTCGHSA enrichment
  11. 2026-05-31 22:30 UTCEPSS rescore
  12. 2026-05-31 22:30 UTCEPSS rescore
  13. 2026-05-31 00:16 UTCEPSS rescore
  14. 2026-05-31 00:16 UTCEPSS rescore
  15. 2026-05-29 13:44 UTCEPSS rescore
  16. 2026-05-29 13:44 UTCEPSS rescore
  17. 2026-05-28 13:44 UTCEPSS rescore
  18. 2026-05-28 13:44 UTCEPSS rescore
  19. 2026-05-27 13:40 UTCEPSS rescore
  20. 2026-05-27 13:40 UTCEPSS rescore
  21. 2026-05-26 13:44 UTCEPSS rescore
  22. 2026-05-26 07:18 UTCEPSS rescore
  23. 2026-05-21 22:43 UTCEPSS rescore
  24. 2026-05-21 10:41 UTCEG score recompute
  25. 2026-05-21 10:41 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-5434?
CVE-2026-5434 is a medium vulnerability published on May 21, 2026. Honeywell Control Network Module (CNM) contains insertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing system files, potentially resulting in unintended access to protected data.
When was CVE-2026-5434 disclosed?
CVE-2026-5434 was first published in the National Vulnerability Database on May 21, 2026, with the most recent update on May 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5434 actively exploited?
CVE-2026-5434 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 88.9% of all scored CVEs.
What is the CVSS score of CVE-2026-5434?
CVE-2026-5434 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-5434?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5434, 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

Explore the affected products and dependency analysis for CVE-2026-5434

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