CVE-2026-4526

MEDIUMNVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
16.1%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 25, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic
https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1
generic

GitHub - SiliconLabsSoftware/sisdk-release: Simplicity GA release repo · GitHub

https://github.com/SiliconLabsSoftware/sisdk-release/

Vendor Advisories for CVE-2026-4526(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 / 35× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 11:45 UTCEG score recompute
  3. 2026-07-06 11:45 UTCGHSA enrichment
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 10:09 UTCEG score recompute
  6. 2026-07-05 10:09 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 08:31 UTCEG score recompute
  9. 2026-07-04 08:30 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 06:53 UTCEG score recompute
  12. 2026-07-03 06:53 UTCGHSA enrichment
  13. 2026-07-02 05:16 UTCEG score recompute
  14. 2026-07-02 05:16 UTCGHSA enrichment
  15. 2026-07-01 15:07 UTCEPSS rescore
  16. 2026-07-01 03:42 UTCEG score recompute
  17. 2026-07-01 03:42 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 02:08 UTCEG score recompute
  20. 2026-06-30 02:08 UTCGHSA enrichment
  21. 2026-06-29 00:34 UTCEG score recompute
  22. 2026-06-29 00:33 UTCGHSA enrichment
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
Show 10 more
  1. 2026-06-27 22:59 UTCEG score recompute
  2. 2026-06-27 22:59 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 21:24 UTCEG score recompute
  5. 2026-06-26 21:24 UTCGHSA enrichment
  6. 2026-06-25 19:50 UTCEG score recompute▲ 6.50
  7. 2026-06-25 19:50 UTCGHSA enrichment
  8. 2026-06-25 19:49 UTCNVD updateCVSS v3 → 6.5 · CVSS v4 → 7.1 · severity → MEDIUM
  9. 2026-06-25 15:49 UTCEG score recompute
  10. 2026-06-25 15:49 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-4526?
CVE-2026-4526 is a medium vulnerability published on June 25, 2026. In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.
When was CVE-2026-4526 disclosed?
CVE-2026-4526 was first published in the National Vulnerability Database on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4526 actively exploited?
CVE-2026-4526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4526?
CVE-2026-4526 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-4526?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4526, 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-2026-4526

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