Mitsubishi Electric MELSEC iQ-F TCP Communication improper validation of specified quantity in input

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Mitsubishi Electric MELSEC iQ-F. It has been classified as problematic. Affected by this issue is some unknown functionality of the component TCP Communication Handler. The manipulation leads to improper validation of specified quantity in input. This vulnerability is listed as CVE-2025-10259. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Mitsubishi Electric MELSEC iQ-F (unknown version). It has been rated as problematic. This issue affects an unknown code block of the component TCP Communication Handler. The manipulation with an unknown input leads to a improper validation of specified quantity in input vulnerability. Using CWE to declare the problem leads to CWE-1284. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. Impacted is availability. The summary by CVE is:

Improper Validation of Specified Quantity in Input vulnerability in TCP Communication Function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote attacker to disconnect the connection by sending specially crafted TCP packets to cause a denial-of-service (DoS) condition on the products. There is no impact on connections other than the attacked one.

The weakness was presented by Qian Zou, Ke Xu, Xuewei Feng, Qi Li, Xueying Li and Gang Jin. It is possible to read the advisory at mitsubishielectric.com. The identification of this vulnerability is CVE-2025-10259 since 09/11/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-37980). Be aware that VulDB is the high quality source for vulnerability data.

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: 5.3

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

CNA Base Score: 5.3
CNA Vector (Mitsubishi): 🔒

CVSSv2info

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

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
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

09/11/2025 CVE reserved
11/06/2025 +56 days Advisory disclosed
11/06/2025 +0 days VulDB entry created
11/06/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: mitsubishielectric.com
Researcher: Qian Zou, Ke Xu, Xuewei Feng, Qi Li, Xueying Li, Gang Jin
Status: Confirmed

CVE: CVE-2025-10259 (🔒)
GCVE (CVE): GCVE-0-2025-10259
GCVE (VulDB): GCVE-100-331343
EUVD: 🔒

Entryinfo

Created: 11/06/2025 12:08
Updated: 11/06/2025 16:56
Changes: 11/06/2025 12:08 (61), 11/06/2025 16:56 (1)
Complete: 🔍
Cache ID: 216::103

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