EIPStackGroup/OpENer

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OpENer is an EtherNet/IP stack for I/O adapter devices. It supports multiple I/O and explicit connections and includes objects and services for making EtherNet/IP-compliant products as defined in the ODVA specification.

Stars: 857
Forks: 314
Open beginner issues: 0
Indexed issues: 81
Avg merge: 18d 2h
Merged PRs (30d): 1

Dominant language: C
License: No license data
Last GitHub push: Sep 4, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

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81 open issues indexed

EncapsulateIpAddress writes wrong sin_family on big endian machine Open

bug

EIPStackGroup/OpENer#535 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
After running few hours OpENer will meet infinity timout loop Open

EIPStackGroup/OpENer#539 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Can't easily use tracing when building OpENer as library. Open

EIPStackGroup/OpENer#547 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
DeviceProductName cleaning Open

EIPStackGroup/OpENer#552 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ODVA CT Test Open

EIPStackGroup/OpENer#555 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[Windows] Link error LNK2019 due to case mismatch in function name getMicroSeconds / GetMicroSeconds Open

EIPStackGroup/OpENer#556 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Out-of-Bounds Read in CIP Padded EPath Decoder Leading to Remote DoS (ASan-confirmed Stack Buffer Overflow) Open

EIPStackGroup/OpENer#557 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Potential out-of-bounds read in CPF parsing logic (Heap-Overflow) Open

EIPStackGroup/OpENer#558 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ODVA CT22 Conformance testing Open

EIPStackGroup/OpENer#559 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Denial of Service (DoS) via Single-Connection Slowloris Attack in TCP Network Handler Open

EIPStackGroup/OpENer#562 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Integer Overflow and Truncation Leading to Stack Buffer Overflow in CIP Message Router Open

EIPStackGroup/OpENer#563 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Stack Out-of-Bounds Read in ForwardOpen Parsing Open

EIPStackGroup/OpENer#564 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect Access Control on Session Handles Open

EIPStackGroup/OpENer#565 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ASan `stack-use-after-return` in TCP SendRRData path via CPF payload pointer lifetime bug Open

EIPStackGroup/OpENer#566 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Malformed CPF and Get_Attribute_List request leads to pointer corruption and `denial of service` in OpENer Open

EIPStackGroup/OpENer#567 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Integer Underflow Leading to Stack Buffer Overflow in CIP Connected Message Path Open

EIPStackGroup/OpENer#568 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remote stack-buffer-overflow read in default `SendRRData` / `SetAttributeSingle` path via overlong but decodable Padded EPath reaching real attribute decoders Open

EIPStackGroup/OpENer#569 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ForwardOpen `ParseConnectionPath()` does not bound Simple Data segment length against `remaining_path`, causing `remaining_path` underflow and an out-of-bounds read in `GetPathSegmentType()` Open

EIPStackGroup/OpENer#570 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remote stack-based out-of-bounds read in `ForwardOpen` connection path parsing due to incorrect Production Inhibit Time path-length accounting Open

EIPStackGroup/OpENer#571 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`SetAttributeList` performs an out-of-bounds read on a non-settable `kCipShortString` attribute in the default build via real TCP `SendRRData` Open

EIPStackGroup/OpENer#572 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ASan `stack-buffer-overflow` in real TCP `SendRRData` path when a recognized truncated optional sockaddr CPF item is parsed in `CreateCommonPacketFormatStructure()` Open

EIPStackGroup/OpENer#573 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ForwardOpen: 32-bit logical class/instance/connection-point segments desynchronize `remaining_path` and trigger a reachable stack-buffer-overflow read in `ParseConnectionPath()` Open

EIPStackGroup/OpENer#574 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cross-protocol stale CPF `data_item` reuse causes `stack-use-after-return` in TCP SendUnitData path Open

EIPStackGroup/OpENer#575 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Valid GetAttributeList request causes response-side `buffer overflow` via per-entry size underestimation Open

EIPStackGroup/OpENer#576 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remote `stack-buffer-overflow read` in Connection Manager services after long padded EPath leaves zero request body Open

EIPStackGroup/OpENer#577 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Stack Out-of-Bounds Read in Blind EPath Decoding Open

EIPStackGroup/OpENer#582 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OpENer DecodePaddedEPath EPATH path_size OOB read Open

EIPStackGroup/OpENer#592 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OpENer DecodePaddedEPath EPATH path_size OOB read Open

EIPStackGroup/OpENer#593 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Memory leak in TCP/IP Interface Object attribute 5 and 6 setters on the validation-failure path Open

EIPStackGroup/OpENer#605 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OpENer DecodePaddedEPath EPATH path_size OOB read (unauthenticated ENIP) — OpENer @ 36943e6 Open

EIPStackGroup/OpENer#606 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
building against OpENer as external library fails due to missing definitions Open

EIPStackGroup/OpENer#610 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

EIPStackGroup/OpENer

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