CVE-2023-1424 — CVE & Security Advisory Radar

🎯 CVE-2023-1424 CRITICAL 10.0 🔥 EPSS 3.4% 🇪🇺 EUVD

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CVE-2023-1424 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and maliciou

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.

Klassifikation & Betroffenheit:

Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ESS Serial number 17X**** or later, versions from 1.220 to 1.281MELSEC iQ-R Series R32PCPU versions from 3 to 37MELSEC iQ-F Series FX5UC-32MT/DSS Serial number 17X**** or later, versions from 1.220 to 1.281MELSEC iQ-F Series FX5UC-32MT/D Serial number 17X**** or later, versions from 1.220 to 1.281MELSEC iQ-R Series R08SFCPU versions from 26 to 31MELSEC iQ-F Series FX5U-32MR/ES Serial number 17X**** or later, versions from 1.220 to 1.281MELSEC iQ-F Series FX5UC-32MR/DS-TS versions from 1.220 to 1.281MELSEC iQ-R Series R120PCPU versions from 3 to 37

Improper Restriction of Operations within the Bounds of a Memory Buffer 🎯 High

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

🛡️ Empfohlene Mitigation: Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow prot…

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-10 · Buffer Overflow via Environment Variable… (High) CAPEC-14 · Client-side Injection-induced Buffer Ove… (High) CAPEC-24 · Filter Failure through Buffer Overflow (High) CAPEC-42 · MIME Conversion (High) CAPEC-44 · Overflow Binary Resource File (Very High) CAPEC-45 · Buffer Overflow via Symbolic Links (High) CAPEC-100 · Overflow Buffers (Very High) CAPEC-123 · Buffer Manipulation (Very High)

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2023-4699 10.0 CVE-2025-3699 9.8 CVE-2024-1917 9.8 CVE-2024-1916 9.8 CVE-2024-1915 9.8

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2023

Veröffentlicht 05/2023

Heute 10.09.

CVSS-Vektor-Analyse: 10.0

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

S · Scope Verändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Hoch

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

Veröffentlicht:24.05.2023

Aktualisiert:17.06.2026 05:27

Assigner (CNA):Mitsubishi

EUVD-ID:EUVD-2023-23677

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-29	2026-09-06
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

10.0 CRITICAL

🇪🇺 EUVD

EPSS

3.4%

CVE-2023-1424 🌐 Netzwerk (Remote) 🔓 Keine Authentifizierung nötig

Mitsubishi Electric Corporation

CVE-2023-1424 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and maliciou

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

24.05.2023

🛡️ Details ➔

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