[ CVE-2026-75349 · Published 9 Oct 2026 ]
Vulnerability
CVSS 7.5
EPSS <1%No fix listed yet
[ Description ]Official description
EIPStackGroup OpENer v2.3.0/master up to commit 76b95cf contains an out-of-bounds read vulnerability in Connection Manager request parsing. 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
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipconnectionmanager.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/cpf.c
- github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/encap.c
- github.com/EIPStackGroup/OpENer/issues/577