Is CVE-2025-3755 in the CISA KEV catalog?

No. CVE-2025-3755 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-3755?

CVE-2025-3755 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2025-3755?

CVE-2025-3755 has an EPSS score of 0.72% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-3755?

No published fix for CVE-2025-3755 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-3755

CRITICAL

9.1

CVSS v3

NVD

Description

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote unauthenticated attacker to read information in the product, to cause a Denial-of-Service (DoS) condition in MELSOFT connection, or to stop the operation of the CPU module (causing a DoS condtion on the CPU module), by sending specially crafted packets. The product is needed to reset for recovery.

CWE-1285

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

0.72%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-1285 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-46724	High	8.6	4.0%	-	Fix
CVE-2022-21821	High	7.8	2.0%	-	Fix
CVE-2026-2006	High	8.8	1.1%	-	Fix
CVE-2020-25241	High	7.5	1.0%	-	Fix
CVE-2025-3357	Critical	9.8	0.9%	-	-
CVE-2022-22223	Medium	6.5	0.8%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-27.