A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the ReadRevisionAttribute function used in multiple clusters (Channel, Account Login, TargetNavigator, etc.). The function lacks proper validation of the delegate pointer before dereferencing. A remote unauthenticated attacker can exploit this issue by sending a crafted read request, causing the device to crash (denial of service). This issue has been confirmed in SDK version v1.4 (commit ab3d5ae).
CVE-2025-56363
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(high)
- EG Risk
- 65(Attend)EG Risk 65/100SSVC: Attend
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 computedSeverity75% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 31%
- KEV
- Not listed
Published
July 14, 2026
Last Modified
July 17, 2026
Advisory Details (2)
Auto-updated Jul 15, 2026[BUG] Missing Null Pointer Check in ReadRevisionAttribute Function · Issue #39173 · project-chip/connectedhomeip · GitHub
https://github.com/project-chip/connectedhomeip/issues/39173GitHub - project-chip/connectedhomeip: Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standards Alliance. · GitHub
https://github.com/project-chip/connectedhomeip/Vendor Advisories for CVE-2025-56363(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 24× in last 7d / 44× 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.
- 2026-07-31 14:11 UTCGHSA enrichment
- 2026-07-31 03:10 UTCEG score recompute
- 2026-07-31 03:09 UTCGHSA enrichment
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 16:07 UTCEG score recompute
- 2026-07-30 16:07 UTCGHSA enrichment
- 2026-07-30 04:12 UTCEG score recompute
- 2026-07-30 04:11 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 17:11 UTCGHSA enrichment
- 2026-07-29 06:10 UTCGHSA enrichment
- 2026-07-28 19:10 UTCEG score recompute
- 2026-07-28 19:10 UTCGHSA enrichment
- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-28 07:57 UTCGHSA enrichment
- 2026-07-27 20:52 UTCEG score recompute
- 2026-07-27 20:52 UTCGHSA enrichment
- 2026-07-27 09:52 UTCGHSA enrichment
- 2026-07-26 22:51 UTCEG score recompute
- 2026-07-26 22:51 UTCGHSA enrichment
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 11:50 UTCEG score recompute
- 2026-07-26 11:50 UTCGHSA enrichment
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
Show 19 moreShow fewer
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 02:59 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-17 06:50 UTCEG score recompute▲ 7.50
- 2026-07-17 06:50 UTCGHSA enrichment
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 14:49 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
- 2026-07-14 23:23 UTCNVD update
- 2026-07-14 22:25 UTCEG score recompute
- 2026-07-14 22:25 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2025-56363?
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Dependency Blast Radius
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