CVE-2025-53817 Mitsubishi Electric CVE debrief

Who should care

Users of Mitsubishi Electric MELSOFT Update Manager SW1DND-UDM-M, especially those in industrial control systems, should be aware of this vulnerability and take necessary precautions to prevent exploitation.

Technical summary

A NULL pointer dereference vulnerability exists in the 7-Zip component included in MELSOFT Update Manager SW1DND-UDM-M. This vulnerability could allow a local attacker to trigger a NULL pointer dereference that may cause the affected product to enter a denial-of-service condition. The vulnerability is related to the 7-Zip component, which is used for decompressing archive files. To exploit this vulnerability, a legitimate user would need to be convinced to decompress a specially crafted archive file using the affected product. The affected product, MELSOFT Update Manager SW1DND-UDM-M, is used for updating and managing Mitsubishi Electric products. Users of this product, especially those in industrial control systems, should be aware of this vulnerability and take necessary precautions to prevent exploitation.

Defensive priority

Apply available patches or workarounds to prevent exploitation of this vulnerability.

Recommended defensive actions

• Apply the fixed version 1.015R or later for MELSOFT Update Manager SW1DND-UDM-M.
• Use the PC with the affected product within a LAN and block remote logins from untrusted networks, hosts, and users.
• Use a firewall, virtual private network (VPN), or similar network security controls to prevent unauthorized access.
• Restrict physical access to the PC with the affected product and the network to which the PC is connected.
• Prevent users from clicking on web links in emails from untrusted sources, or from opening attachments in untrusted emails.
• Install anti-virus software on the PC with the affected product.

Evidence notes

The CVE record and source item provide information on the vulnerability, affected product, and available mitigations. However, the details are limited, and further investigation is required to fully understand the vulnerability and its potential impact.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.