Mitsubishi Electric MELSEC iQ-F FX5-ENET IP Ethernet Module FX5-ENET denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Mitsubishi Electric MELSEC iQ-F FX5-ENET IP Ethernet Module FX5-ENET and IP and classified as problematic. Affected is an unknown function. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-1876. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Mitsubishi Electric MELSEC iQ-F FX5-ENET IP Ethernet Module FX5-ENET and IP (the affected version is unknown). Affected is an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service (DoS) condition on the products by continuously sending UDP packets to the products. A system reset of the product is required for recovery.

The advisory is available at mitsubishielectric.com. This vulnerability is traded as CVE-2026-1876 since 02/04/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/04/2026 CVE reserved
03/03/2026 +27 days Advisory disclosed
03/03/2026 +0 days VulDB entry created
05/05/2026 +63 days VulDB entry last update

Sourcesinfo

Advisory: mitsubishielectric.com
Status: Confirmed

CVE: CVE-2026-1876 (🔒)
GCVE (CVE): GCVE-0-2026-1876
GCVE (VulDB): GCVE-100-348534

Entryinfo

Created: 03/03/2026 09:22
Updated: 05/05/2026 16:33
Changes: 03/03/2026 09:22 (63), 03/06/2026 03:09 (1), 05/05/2026 16:33 (9)
Complete: 🔍
Cache ID: 216::103

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