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8.7 High

CVE-2026-102718 Out-of-bounds read in the NetX Duo SNMP OID parser via a multi-byte BER length

Description

In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, the SNMP agent's OID parser uses a multi-byte BER length from the request without checking it against the bytes present, and reads past the end of the packet buffer. A remote, unauthenticated attacker can send a crafted SNMP request that makes the agent read adjacent memory into its OID state, faulting the agent on targets with memory protection.

CVSS 4.0 detail

Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Confidentiality of other systems
None
Integrity of other systems
None
Availability of other systems
None

Affected products and versions

Product Affected versions Fixed in
NetX Duo 6.5 earliest → 6.5.1.202602 No fix stated
Eclipse ThreadX NetX Duo 6.5 earliest → 6.5.2.202603 6.5.2.202603a
The 32 CVEs of NetX Duo →
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