Mitsubishi Electric MELSEC iQ-F Web Server length parameter

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Mitsubishi Electric MELSEC iQ-F. The affected element is an unknown function of the component Web Server. Such manipulation leads to length parameter. This vulnerability is listed as CVE-2025-5514. The attack may be performed from remote. There is no available exploit. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Mitsubishi Electric MELSEC iQ-F (affected version not known) and classified as problematic. Affected by this issue is some unknown functionality of the component Web Server. The manipulation with an unknown input leads to a length parameter vulnerability. Using CWE to declare the problem leads to CWE-130. The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data. Impacted is availability. CVE summarizes:

Improper Handling of Length Parameter Inconsistency vulnerability in web server function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to delay the processing of the web server function and prevent legitimate users from utilizing the web server function, by sending a specially crafted HTTP request.

The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2025-5514. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-25657). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Length parameter
CWE: CWE-130 / CWE-119
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: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/21/2025 Advisory disclosed
08/21/2025 +0 days VulDB entry created
08/25/2025 +4 days VulDB entry last update

Sourcesinfo

Advisory: icsa-25-233-01
Status: Confirmed

CVE: CVE-2025-5514 (🔒)
GCVE (CVE): GCVE-0-2025-5514
GCVE (VulDB): GCVE-100-321008
EUVD: 🔒

Entryinfo

Created: 08/21/2025 22:55
Updated: 08/25/2025 10:43
Changes: 08/21/2025 22:55 (50), 08/25/2025 09:30 (10), 08/25/2025 10:43 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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