[ CVE-2026-75345 · Published 9 Oct 2026 ]
Vulnerability
CVSS 7.5
EPSS <1%No fix listed yet
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
[ Description ]Official description
OpENer v2.3.0 / commit 76b95cf contains an out-of-bounds read in the unconnected explicit messaging path. This allows a remote attacker to cause a denial of service.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipcommon.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/ciptcpipinterface.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/endianconv.c
- github.com/EIPStackGroup/OpENer/issues/569
- github.com/EIPStackGroup/OpENer/tree/76b95cf