CVE-2026-8805
Denial-of-service (DoS) vulnerability in MELSEC iQ-F Series EtherNet/IP module
Description
Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by rapidly establishing a large number of TCP connections to it, resulting in an inconsistency in the product's internal connection management process and triggering improper memory access.
INFO
Published Date :
June 19, 2026, 2:26 a.m.
Last Modified :
June 19, 2026, 2:26 a.m.
Remotely Exploit :
Yes !
Source :
Mitsubishi
Affected Products
The following products are affected by CVE-2026-8805
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | e0f77b61-78fd-4786-b3fb-1ee347a748ad |
Solution
- Update the FX5-EIP module firmware.
- Limit the number of concurrent TCP connections.
- Restrict access to the EtherNet/IP module.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8805 vulnerability anywhere in the article.