CVE-2025-3756 (GCVE-0-2025-3756)
Vulnerability from cvelistv5
Published
2026-04-13 17:11
Modified
2026-04-13 18:03
Severity ?
7.1 (High) - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1284 - Improper validation of specified quantity in input
Summary
A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE. An attacker with access to IEC 61850 networks could exploit the vulnera bility by using a specially crafted 61850 packet, forcing the communication interfaces of the PM 877, CI850 and CI868 modules into fault mode or causing unavailability of the S+ Operations 61850 connectivity, resulting in a denial-of-service situation.  The System 800xA IEC61850 Connect is not affected. Note: This vulnerability does not impact on the overall availability and functionality of the S+ Operations node, only the 61850 communication function.     This issue affects AC800M (System 800xA): from 6.0.0x through 6.0.0303.0, from 6.1.0x through 6.1.0031.0, from 6.1.1x through 6.1.1004.0, from 6.1.1x through 6.1.1202.0, from 6.2.0x through 6.2.0006.0; Symphony Plus SD Series: A_0, A_1, A_2.003, A_3.005, A_4.001, B_0.005; Symphony Plus MR (Melody Rack): from 3.10 through 3.52; S+ Operations: 2.1, 2.2, 2.3, 3.3.
References
Impacted products
Vendor Product Version
ABB AC800M (System 800xA) Version: 6.0.0x   <
Version: 6.1.0x   <
Version: 6.1.1x   <
Version: 6.1.1x   <
Version: 6.2.0x   <
Create a notification for this product.
   ABB Symphony Plus SD Series Version: A_0   <
Version: A_1   <
Version: A_2.003   <
Version: A_3.005   <
Version: A_4.001   <
Version: B_0.005   <
Create a notification for this product.
   ABB Symphony Plus MR (Melody Rack) Version: 3.10   <
Create a notification for this product.
   ABB S+ Operations Version: 2.1   <
Version: 2.2   <
Version: 2.3   <
Version: 3.3   <
Create a notification for this product.
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