Description
Due to improper input validation, a buffer overflow vulnerability is present in Zigbee EZSP Host Applications. If the buffer overflows, stack corruption is possible. In certain conditions, this could lead to arbitrary code execution. Access to a network key is required to exploit this vulnerability.
References (1)
Core 1
Core References
Various Sources vendor-advisory
permissions-required
https://community.silabs.com/068Vm00000WJZED
Scores
CVSS v4
9.4
EPSS
0.0025
EPSS Percentile
16.0%
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-20
Status
published
Products (3)
silabs.com/Gecko SDK
< 4.4.6
silabs.com/Simplicity SDK
< 2024.12.2
silabs.com/Simplicity SDK
< 2025.6.0
Published
Oct 17, 2025
Tracked Since
Feb 18, 2026