CVE-2026-75349

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-25)

CWE

CWE-400

Published

2026-10-09

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

References

• https://github.com/EIPStackGroup/OpENer
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipconnectionmanager.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/cpf.c
• https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/encap.c

Check your stackJSON