CVE-2024-1917
CWE-190Published: March 15, 2024· Updated: Jun 17, 2026
Official Description
Integer Overflow or Wraparound vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series and MELSEC-L Series CPU modules allows a remote unauthenticated attacker to execute malicious code on a target product by sending a specially crafted packet.
Risk Analysis
This vulnerability involves an integer overflow in Mitsubishi Electric MELSEC-Q and MELSEC-L series CPU modules. It is rated as critical with a CVSS score of 9.8, indicating that it allows remote, unauthenticated attackers to execute malicious code.
There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. The vulnerability is remotely exploitable with low attack complexity.
Apply the latest security patches provided by Mitsubishi Electric for the affected CPU modules. Ensure that industrial control systems are isolated from public networks to reduce exposure.
Technical Analysis
CVE-2024-1917 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (6)
Quick Facts
Related CVEs (CWE-190)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-1917 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts