NULL Pointer Dereference on MSRP Attribute Table Exhaustion
Priority LOW 30CWE-476Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, the MSRP attribute lookup writes through the null pointer returned by its allocator when the ten-entry attribute table is full. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring enough new attributes, and Talker Failed declarations hold table entries that are never released.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Fix Fixed Eclipse ThreadX NetX Duo (Eclipse Foundation): 6.5.2.202603b
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX NetX Duo | 6.4.0 – 6.5.2.202603a | 6.5.2.202603b | Patch available | CNA |
- Eclipse ThreadX NetX Duo VendorEclipse Foundation Affected 6.4.0 – 6.5.2.202603a Fixed in 6.5.2.202603b Patch available CNA
Remediation
- Fix · CNA Eclipse ThreadX NetX Duo (Eclipse Foundation) Fixed in 6.5.2.202603b
Timeline
- 2026-10-02 Threatist record created from CVE-2026-102723
- 2026-10-03 Alias added: GHSA-h2rg-f2rc-xc9m
- 2026-11-04 CVSS score changed · CNA
- 2026-11-04 Weakness changed · CNA
- 2026-11-04 Fix available: NetX [email protected] · CNA
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Sources
- CVE-2026-102723 · CVE Program
- CVE-2026-102723 · NVD
- FIRST EPSS
- GHSA-h2rg-f2rc-xc9m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences