CVE-2026-75347: EIPStackGroup OpENer · Uncontrolled Resource Consumption
Source CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Until a patch is available, users should monitor vendor communications for updates.
Description
EIPStackGroup OpENer versions v2.3 and the master branch up to commit 76b95cf have a vulnerability in the EtherNet/IP Common Packet Format (CPF) handling logic. This vulnerability involves dereferencing an expired pointer, which can be exploited remotely to cause a denial of service. The vulnerability has a high severity with a CVSS score of 7.5. No affected versions are explicitly stated beyond the commit reference, and no patch or remediation information is provided.
References
- github.com/EIPStackGroup/OpENer/issues/575 (opens in a new tab)
- github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/cpf.c (opens in a new tab)
- github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/encap.c (opens in a new tab)
- github.com/EIPStackGroup/OpENer/blob/master/source/src/ports/generic_networkhandler.c (opens in a new tab)