cbcvebase.
CVE-2025-3128
published 2025-08-21

CVE-2025-3128: A remote unauthenticated attacker who has bypassed authentication could execute arbitrary OS commands to disclose, tamper with, destroy or delete information…

PriorityP268critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.66%
46.7th percentile
A remote unauthenticated attacker who has bypassed authentication could execute arbitrary OS commands to disclose, tamper with, destroy or delete information in Mitsubishi Electric smartRTU, or cause a denial-of service condition on the product.

Affected

1 ranges
VendorProductVersion rangeFixed in
mitsubishi_electric_europesmartrtu<= 3.37

Detection & IOCsextracted from sources · hover to see the quote

  • CVE-2025-3128 is exploited via OS command injection (CWE-78) through a specific API route that bypasses authentication (CWE-306, CVE-2025-3232) on Mitsubishi Electric smartRTU. Monitor for unauthenticated HTTP/HTTPS requests targeting API routes on smartRTU devices, especially those that trigger OS command execution.
  • Deploy a WAF to detect and block malicious HTTP/HTTPS traffic targeting smartRTU API endpoints, particularly payloads containing OS command injection characters (e.g., semicolons, pipes, backticks, $() constructs).
  • Affected product versions are smartRTU 3.37 and prior. Identify and prioritize monitoring of these devices on the network.
  • ·The specific vulnerable API route used to bypass authentication is not publicly disclosed in the available sources. Detection rules cannot be scoped to a precise URL path without this information.
  • ·No known public exploitation has been reported at time of advisory publication, limiting availability of real-world IOCs such as attacker IPs, hashes, or payloads.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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