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32 vulnerabilities found for NetX Duo by Eclipse Foundation
CVE-2026-106465 (GCVE-0-2026-106465)
Vulnerability from nvd – Published: 2026-10-14 17:47 – Updated: 2026-10-16 20:14
VLAI
EPSS
VEX
Summary
The NetX Secure DTLS server sends a HelloVerifyRequest carrying a freshly generated cookie, but never checks the cookie a client returns. The ClientHello parser copies the client's cookie bytes over the value the server issued, and the server then decides whether the client has been verified from the cookie's length alone. A peer that puts any single cookie byte in its first ClientHello skips the verification exchange entirely, so the server has no return-routability check and completes handshakes for forged source addresses.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:14 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.2.202603
(custom)
Unaffected: 6.5.2.202603a |
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CVE-2026-106464 (GCVE-0-2026-106464)
Vulnerability from nvd – Published: 2026-10-14 17:41 – Updated: 2026-10-16 20:13
VLAI
EPSS
VEX
Summary
`_nx_secure_x509_parse_signature_data` computes the certificate signature's length as `tlv_length - 1` without first checking that `tlv_length` is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of `0xFFFFFFFF` and a signature pointer one byte past the end of the buffer. Certificates are parsed from the peer during the TLS handshake, so the input is remote and unauthenticated.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:13 UTC
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.2.202603
(custom)
Unaffected: 6.5.2.202603a |
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CVE-2026-103415 (GCVE-0-2026-103415)
Vulnerability from nvd – Published: 2026-10-14 17:36 – Updated: 2026-10-16 20:12
VLAI
EPSS
VEX
Summary
When a TLS 1.3 client processes a HelloRetryRequest, it copies the server's cookie into its second ClientHello without checking that the cookie fits in the outgoing packet. Both the length and the contents of that cookie come from the peer, and the write happens before certificate authentication completes, so a malicious or compromised server can overwrite memory past the caller supplied TLS packet buffer without presenting a certificate.
Only the client path is affected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:12 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(custom)
Unaffected: 6.5.2.202603 |
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CVE-2026-102717 (GCVE-0-2026-102717)
Vulnerability from nvd – Published: 2026-09-30 14:31 – Updated: 2026-09-30 20:00
VLAI
EPSS
VEX
Title
MQTT WebSocket setter ABI mismatch may disclose memory or cause a crash
Summary
MQTT WebSocket setter ABI mismatch may disclose memory or cause a crash
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 19:59 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
6.4.4 , ≤ 6.5.1.202602
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-102762 (GCVE-0-2026-102762)
Vulnerability from nvd – Published: 2026-09-29 17:32 – Updated: 2026-09-30 20:39
VLAI
EPSS
VEX
Summary
The NetX Duo MQTT client leaks the packet carrying a malformed PUBLISH message. Each malformed PUBLISH costs one packet, or one chain of packets, from the network driver's receive pool, and nothing returns it. A peer that can deliver a few dozen such messages exhausts the pool and stops all inbound network traffic on the device until it is rebooted.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:39 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
6.0 , ≤ 6.5.1.202602
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-102761 (GCVE-0-2026-102761)
Vulnerability from nvd – Published: 2026-09-29 17:30 – Updated: 2026-09-30 20:41
VLAI
EPSS
VEX
Summary
NetX Duo's WebSocket client resets the unmasking cursor to the first `NX_PACKET` each time it advances through a chained packet, while the loop's upper bound belongs to the current packet. With the standard contiguous packet-pool layout, a masked server frame split across two packets therefore drives the XOR loop through the first packet's unused payload area and on through the second packet's `NX_PACKET` control block.
The four-byte WebSocket masking key controls the bytes written, so the corruption is attacker-chosen rather than incidental.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:40 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
6.2.0 , ≤ 6.5.1.202602
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-102760 (GCVE-0-2026-102760)
Vulnerability from nvd – Published: 2026-09-29 17:29 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Summary
When NetX Secure is built with `NX_SECURE_KEY_CLEAR`, every TLS record sent on an active session is wiped after it has been handed to TCP. By then the TCP layer owns the packet chain and may already have released it to the packet pool. The wipe therefore writes zeros into packets that are free or in use by another thread, and when a reused packet's pointers no longer describe the old data, the length of the wipe underflows and it runs past the end of the packet pool.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:58 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
6.0 , ≤ 6.5.1.202602
(semver)
Unaffected: 6.5.2.202603 |
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CVE-2026-102759 (GCVE-0-2026-102759)
Vulnerability from nvd – Published: 2026-09-29 17:28 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Summary
NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length equals the negotiated MAC size is treated as valid and returns success after advancing the receive sequence number. The received MAC is never generated or compared.
Empty TLS application-data records are legal, and are commonly emitted by TLS 1.0 implementations as a BEAST mitigation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:58 UTC
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
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CVE-2026-102758 (GCVE-0-2026-102758)
Vulnerability from nvd – Published: 2026-09-29 17:26 – Updated: 2026-09-30 20:42
VLAI
EPSS
VEX
Summary
The `_nx_secure_x509_asn1_tlv_block_parse()` function parses ASN.1 TLV (tag-length-value) blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake.
The function reads the one-byte ASN.1 tag from the caller's buffer *before* checking that the buffer holds at least one byte. When a caller passes a remaining length of zero, the guard correctly returns `NX_SECURE_X509_ASN1_LENGTH_TOO_LONG`, but the read has already happened one byte past the end of the buffer.
code:
nx_secure/src/nx_secure_x509_asn1_tlv_block_parse.c
```
UINT _nx_secure_x509_asn1_tlv_block_parse(const UCHAR *buffer, ULONG *buffer_length, USHORT *tlv_type,
USHORT *tlv_tag_class, ULONG *tlv_length,
const UCHAR **tlv_data, ULONG *header_length)
{
UINT current_index;
USHORT current_tag;
ULONG length;
ULONG length_bytes;
current_index = 0;
current_tag = buffer[current_index]; /* <-- read before the bounds check */
if (*buffer_length < 1)
{
return(NX_SECURE_X509_ASN1_LENGTH_TOO_LONG);
}
```
The remainder of the function is correctly ordered. The multi-byte length path is guarded by `length_bytes > 4 || length_bytes > *buffer_length` before its read loop, the decoded value is checked against `length > *buffer_length`, and the second single-byte length read follows its own `*buffer_length < 1` guard. The tag read is the only load placed ahead of its check.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:42 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(custom)
Unaffected: 6.5.2.202603 |
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CVE-2026-102728 (GCVE-0-2026-102728)
Vulnerability from nvd – Published: 2026-09-29 17:55 – Updated: 2026-09-30 19:35
VLAI
EPSS
VEX
Summary
Two client-side TLS/DTLS handshake parsers in NetX Secure read fields from a server-supplied message before validating that the message is long enough to contain them. Both are bounded out-of-bounds reads on a remotely reachable path, both are reached from a TLS or DTLS client connecting to a malicious or malformed server, and both have the same shape: the bounds check exists and returns the correct status, but it runs after the read it is meant to guard.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 19:35 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102727 (GCVE-0-2026-102727)
Vulnerability from nvd – Published: 2026-09-29 17:57 – Updated: 2026-09-29 18:30
VLAI
EPSS
VEX
Summary
FTP Passive Data Connection Not Bound to the Authenticated Control Peer
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:30 UTC
CWE
- CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102726 (GCVE-0-2026-102726)
Vulnerability from nvd – Published: 2026-09-29 17:51 – Updated: 2026-09-29 18:31
VLAI
EPSS
VEX
Summary
Unbounded PPP IPCP Option Parsing Causes a Worker Stall and Out-of-bounds Read
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:31 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
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|
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CVE-2026-102725 (GCVE-0-2026-102725)
Vulnerability from nvd – Published: 2026-09-29 17:51 – Updated: 2026-09-29 18:32
VLAI
EPSS
VEX
Summary
Out-of-bounds Read from Unvalidated MSRP Attribute List Length
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:32 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102724 (GCVE-0-2026-102724)
Vulnerability from nvd – Published: 2026-09-29 17:49 – Updated: 2026-09-29 18:33
VLAI
EPSS
VEX
Summary
NULL Pointer Dereference When Evicting the Sole MSRP Attribute
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:33 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
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CVE-2026-102723 (GCVE-0-2026-102723)
Vulnerability from nvd – Published: 2026-09-29 17:48 – Updated: 2026-09-29 18:33
VLAI
EPSS
VEX
Summary
NULL Pointer Dereference on MSRP Attribute Table Exhaustion
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:33 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
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CVE-2026-102722 (GCVE-0-2026-102722)
Vulnerability from nvd – Published: 2026-09-29 17:47 – Updated: 2026-09-29 18:34
VLAI
EPSS
VEX
Summary
In the IPv4 PASV path, the FTP Client accepts whatever address was sent in the server's `227` reply. Validation only covers the parse and the non-zero values, thus a malicious server can name any address and direct the Client there.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:34 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102721 (GCVE-0-2026-102721)
Vulnerability from nvd – Published: 2026-09-29 17:47 – Updated: 2026-09-29 18:36
VLAI
EPSS
VEX
Summary
A TFTP server that answers with a short ERROR packet makes the client read up to 64 bytes past the
received datagram.
Each receive path checks only that the datagram is at least four bytes long (nxd_tftp_client.c:1229,
1521, 1984). When the opcode is NX_TFTP_CODE_ERROR the message string is copied with a loop whose
only limits are the destination buffer and a NUL byte:
```c
/* addons/tftp/nxd_tftp_client.c:1769 */
for (i = 0; (i < (sizeof(tftp_client_ptr -> nx_tftp_client_error_string) - 1)) && (*buffer_ptr); i++)
```
Nothing compares `buffer_ptr` against `nx_packet_append_ptr`. An ERROR packet that carries no
terminating NUL, which a server controls completely, walks the loop off the end of the packet until
it happens to meet a zero byte or fills the 64 byte destination.
```
ERROR: AddressSanitizer: heap-buffer-overflow
READ of size 1 at 0x60d0000000c8 thread T4
#0 _nxd_tftp_client_file_read addons/tftp/nxd_tftp_client.c:1769
0x60d0000000c8 is 0 bytes to the right of 136-byte region
```
The open path has the same loop at :1327 and reports the same way. What is read lands in
`nx_tftp_client_error_string`, which the application is expected to display or log, so adjacent
packet pool memory ends up in whatever the device does with the error text.
Add `(buffer_ptr < packet_ptr -> nx_packet_append_ptr)` to the loop condition in all three paths.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:35 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1
(semver)
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"value": "\u003cp\u003eA TFTP server that answers with a short ERROR packet makes the client read up to 64 bytes past the\u003c/p\u003e\u003cp\u003ereceived datagram.\u003c/p\u003e\u003cp\u003eEach receive path checks only that the datagram is at least four bytes long (nxd_tftp_client.c:1229,\u003c/p\u003e\u003cp\u003e1521, 1984). When the opcode is NX_TFTP_CODE_ERROR the message string is copied with a loop whose\u003c/p\u003e\u003cp\u003eonly limits are the destination buffer and a NUL byte:\u003c/p\u003e\u003cp\u003e```c\u003c/p\u003e\u003cp\u003e/* addons/tftp/nxd_tftp_client.c:1769 */\u003c/p\u003e\u003cp\u003efor (i = 0; (i \u0026lt; (sizeof(tftp_client_ptr -\u0026gt; nx_tftp_client_error_string) - 1)) \u0026amp;\u0026amp; (*buffer_ptr); i++)\u003c/p\u003e\u003cp\u003e```\u003c/p\u003e\u003cp\u003eNothing compares `buffer_ptr` against `nx_packet_append_ptr`. An ERROR packet that carries no\u003c/p\u003e\u003cp\u003eterminating NUL, which a server controls completely, walks the loop off the end of the packet until\u003c/p\u003e\u003cp\u003eit happens to meet a zero byte or fills the 64 byte destination.\u003c/p\u003e\u003cp\u003e```\u003c/p\u003e\u003cp\u003eERROR: AddressSanitizer: heap-buffer-overflow\u003c/p\u003e\u003cp\u003eREAD of size 1 at 0x60d0000000c8 thread T4\u003c/p\u003e\u003ccode\u003e #0 _nxd_tftp_client_file_read addons/tftp/nxd_tftp_client.c:1769\u003c/code\u003e\u003cbr\u003e\u003cp\u003e0x60d0000000c8 is 0 bytes to the right of 136-byte region\u003c/p\u003e\u003cp\u003e```\u003c/p\u003e\u003cp\u003eThe open path has the same loop at :1327 and reports the same way. What is read lands in\u003c/p\u003e\u003cp\u003e`nx_tftp_client_error_string`, which the application is expected to display or log, so adjacent\u003c/p\u003e\u003cp\u003epacket pool memory ends up in whatever the device does with the error text.\u003c/p\u003e\u003cp\u003eAdd `(buffer_ptr \u0026lt; packet_ptr -\u0026gt; nx_packet_append_ptr)` to the loop condition in all three paths.\u003c/p\u003e"
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CVE-2026-102718 (GCVE-0-2026-102718)
Vulnerability from nvd – Published: 2026-09-29 17:44 – Updated: 2026-09-29 18:40
VLAI
EPSS
VEX
Summary
hey,
`_nx_snmp_utility_object_id_get` in the NetX Duo SNMP addon does not validate the claimed OID data length against the actual buffer size when the OID uses BER multibyte length encoding, so a remote attacker can send a crafted SNMP packet with a multibyte OID length larger than the available buffer, causing the parser to read past the packet buffer boundary into adjacent heap memory. the OOB bytes are decoded as OID component values and written into the agents internal OID string buffer, corrupting agent state. on systems with memory protection the OOB read poses the risk of crashing the SNMP agent thread, causing denial of service. on bare metal embedded systems without memory protection the read silently succeeds and corrupts the agents internal state with heap data.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:39 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102714 (GCVE-0-2026-102714)
Vulnerability from nvd – Published: 2026-09-29 17:41 – Updated: 2026-09-29 18:43
VLAI
EPSS
VEX
Summary
`_nx_icmpv6_validate_options()` scans the option area with `while (length > 2)` (`common/src/nx_icmpv6_validate_options.c:79`). An area whose size leaves a one- or two-byte residue exits the loop with that tail unexamined; the residue is not negative, so the function returns `NX_SUCCESS`. Its zero-length rejection never sees those bytes.
Every consumer then re-walks the same area, reading a two-byte option header at the residue and subtracting `nx_icmpv6_option_length << 3` with no zero check and no remaining-length check. Three outcomes follow, selected by bytes the attacker controls.
**Zero length byte.** The walker subtracts zero and advances zero. All four handlers loop forever — `_nx_icmpv6_process_ra` (`nx_icmpv6_process_ra.c:245, :528`), `_nx_icmpv6_process_ns` (`:251, :329`), `_nx_icmpv6_process_na` (`:147, :156`) and `_nx_icmpv6_process_redirect` (`:247, :350`). The walk runs in the IP thread, which is the highest-priority thread and does not yield inside the loop, so the system stops until a watchdog reset and the frame can be replayed after each one.
**Non-zero length byte on a short residue.** The three unsigned counters underflow — `2 - 8` becomes `0xFFFFFFFA` — and the walk continues past the packet buffer, reading until it faults or meets a zero length byte and freezes. The Router Advertisement counter is signed and exits cleanly in this case.
**One-byte residue.** The walker reads a two-byte option header, over-reading one byte.
During a runaway walk, stray bytes parsing as a link-layer address option are copied into the neighbor cache (`nx_icmpv6_process_ns.c:280, :293`) and subsequently used as the destination MAC for frames to that neighbour, placing off-packet memory on the link. Confirmed by inspection, not reproduced.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:42 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102713 (GCVE-0-2026-102713)
Vulnerability from nvd – Published: 2026-09-29 17:40 – Updated: 2026-09-29 18:44
VLAI
EPSS
VEX
Summary
The TFTP server accepts a DATA datagram of any size. The dispatcher rejects datagrams shorter than
four bytes (nxd_tftp_server.c:1037) and nothing anywhere checks an upper bound, in particular not
against the protocol maximum of 4 + NX_TFTP_FILE_TRANSFER_MAX. Two things follow from that one
missing check, both reachable before any authentication because TFTP has none.
The handler passes `nx_packet_length - 4` straight to FileX:
```c
/* addons/tftp/nxd_tftp_server.c:1863, 1889 */
status = nx_packet_copy(packet_ptr, &temp_ptr,
server_ptr -> nx_tftp_server_packet_pool_ptr, NX_WAIT_FOREVER);
...
fx_file_write(&(client_request_ptr -> nx_tftp_client_request_file),
packet_ptr -> nx_packet_prepend_ptr + 4,
packet_ptr -> nx_packet_length - 4);
```
`nx_packet_length` is the length of a chain, not of one contiguous buffer, so FileX copies past the
end of the first packet:
```
ERROR: AddressSanitizer: heap-buffer-overflow
READ of size 1280 at 0x621000001108 thread T5
#0 __interceptor_memcpy
#1 _fx_utility_memory_copy filex/common/src/fx_utility_memory_copy.c:78
0x621000001108 is 0 bytes to the right of 4104-byte region
```
Those bytes are written into the file the attacker is uploading, and a TFTP read request hands them
back, so this is a memory disclosure with a convenient retrieval channel.
The same datagram also wedges the server. `nx_packet_copy` at :1863 needs
ceil(nx_packet_length / pool_payload) packets and asks for them with NX_WAIT_FOREVER, so when the
attacker sizes the datagram beyond what the pool holds, the server thread suspends and never
returns. A liveness probe after one such datagram times out with the pool at 0 of 12 packets and
the server thread suspended, and no later client is served.
Reject `nx_packet_length > 4 + NX_TFTP_FILE_TRANSFER_MAX` in the DATA branch before either call,
and use a bounded wait rather than NX_WAIT_FOREVER for the copy.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:44 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2026-102712 (GCVE-0-2026-102712)
Vulnerability from nvd – Published: 2026-09-29 17:39 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Summary
On the first DTLS ClientHello, the parser copies a device-claimed session_id length and validates the
ciphersuite-list length against the total record length instead of the remaining bytes. An unauthenticated
peer drives an OOB source read of up to 255 bytes, and those bytes are echoed verbatim into the outgoing
ServerHello, disclosing adjacent process memory over the network. The crash variant fires on the first
packet.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:57 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , ≤ 6.5.1.202602
(semver)
|
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CVE-2025-55085 (GCVE-0-2025-55085)
Vulnerability from nvd – Published: 2025-10-17 14:22 – Updated: 2025-10-20 18:42
VLAI
EPSS
VEX
Title
Web http client: Unchecked Server-Side Malicious Packet Issue
Summary
In NextX Duo before 6.4.4, in the HTTP client module, the network support code for Eclipse Foundation ThreadX, the parsing of HTTP header fields was missing bounds verification. A crafted server response could cause undefined behavior.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-20 18:41 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , < 6.4.4
(semver)
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CVE-2025-55096 (GCVE-0-2025-55096)
Vulnerability from nvd – Published: 2025-10-17 05:32 – Updated: 2025-10-17 13:20
VLAI
EPSS
VEX
Title
Inadequate bounds check and potential underflow in _ux_host_class_hid_report_descriptor_get()
Summary
In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _ux_host_class_hid_report_descriptor_get()
when parsing a descriptor of an USB HID device.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-17 13:17 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/usbx/security/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , < 6.4.3
(semver)
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CVE-2025-55094 (GCVE-0-2025-55094)
Vulnerability from nvd – Published: 2025-10-17 05:29 – Updated: 2025-10-17 14:15
VLAI
EPSS
VEX
Title
Potential out-of-bounds read in _nx_icmpv6_validate_options()
Summary
In NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_icmpv6_validate_options() when handling a packet with ICMP6 options.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-17 14:15 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/netxduo/securi… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
0 , < 6.4.4
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CVE-2025-55093 (GCVE-0-2025-55093)
Vulnerability from nvd – Published: 2025-10-17 05:11 – Updated: 2025-10-17 14:21
VLAI
EPSS
VEX
Title
Out of bound read and write in _nx_ipv4_packet_receive() when handling unicast DHCP messages
Summary
In NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_ipv4_packet_receive() when handling unicast DHCP messages that could cause corruption of 4 bytes of memory.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-17 14:21 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/netxduo/securi… | vendor-advisory |
Impacted products
1 product
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CVE-2025-55092 (GCVE-0-2025-55092)
Vulnerability from nvd – Published: 2025-10-17 05:09 – Updated: 2025-10-17 14:23
VLAI
EPSS
VEX
Title
Potential out of bound read in _nx_ipv4_option_process()
Summary
In Eclipse Foundation NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_ipv4_option_process() when processing an IPv4 packet with the timestamp option.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-17 14:23 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/netxduo/securi… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
0 , < 6.4.4
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CVE-2025-55091 (GCVE-0-2025-55091)
Vulnerability from nvd – Published: 2025-10-16 07:56 – Updated: 2025-10-16 13:33
VLAI
EPSS
VEX
Title
Potential out of bound read in _nx_ip_packet_receive()
Summary
In NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_ip_packet_receive() function when received an Ethernet with type set as IP but no IP data.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-16 13:32 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/netxduo/securi… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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| Eclipse Foundation | NetX Duo |
Affected:
0 , < 6.4.4
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CVE-2025-55090 (GCVE-0-2025-55090)
Vulnerability from nvd – Published: 2025-10-16 06:43 – Updated: 2025-10-16 14:24
VLAI
EPSS
VEX
Title
Potential out of bound read issue in _nx_ipv4_packet_receive() in NetX Duo
Summary
In NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_ipv4_packet_receive() function when received an Ethernet frame with less than 4 bytes of IP packet.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-16 14:24 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/eclipse-threadx/netxduo/securi… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , < 6.4.4
(semver)
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CVE-2025-55084 (GCVE-0-2025-55084)
Vulnerability from nvd – Published: 2025-10-16 06:29 – Updated: 2025-10-16 14:29
VLAI
EPSS
VEX
Title
Out of bound read in _nx_secure_tls_proc_clienthello_supported_versions_extension()
Summary
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-16 14:26 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
| URL | Tags |
|---|---|
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Impacted products
1 product
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Affected:
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CVE-2025-55083 (GCVE-0-2025-55083)
Vulnerability from nvd – Published: 2025-10-15 14:11 – Updated: 2025-10-27 16:12
VLAI
EPSS
VEX
Title
Broken bounds check in Broken bounds check in _nx_secure_tls_process_clienthello_psk_extension()
Summary
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check resulting it out by two out of bound read.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-15 16:13 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | NetX Duo |
Affected:
0 , < 6.4.4
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