CVE-2025-3756
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Denial of Service Vulnerabilities in System 800xA, Symphony® Plus IEC 61850
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
AC800M (System 800xA)
- Vendor
- ABB
- Product
- AC800M (System 800xA)
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.0.0x | affected | custom | Unavailable | 6.0.0303.0 | None listed |
| 6.1.0x | affected | custom | Unavailable | 6.1.0031.0 | None listed |
| 6.1.1x | affected | custom | Unavailable | 6.1.1004.0 | None listed |
| 6.1.1x | affected | custom | Unavailable | 6.1.1202.0 | None listed |
| 6.2.0x | affected | custom | Unavailable | 6.2.0006.0 | None listed |
Symphony Plus SD Series
- Vendor
- ABB
- Product
- Symphony Plus SD Series
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| A_0 | affected | custom | Unavailable | Unavailable | None listed |
| A_1 | affected | custom | Unavailable | Unavailable | None listed |
| A_2.003 | affected | custom | Unavailable | Unavailable | None listed |
| A_3.005 | affected | custom | Unavailable | Unavailable | None listed |
| A_4.001 | affected | custom | Unavailable | Unavailable | None listed |
| B_0.005 | affected | custom | Unavailable | Unavailable | None listed |
Symphony Plus MR (Melody Rack)
- Vendor
- ABB
- Product
- Symphony Plus MR (Melody Rack)
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.10 | affected | custom | Unavailable | 3.52 | None listed |
S+ Operations
- Vendor
- ABB
- Product
- S+ Operations
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.1 | affected | custom | Unavailable | Unavailable | None listed |
| 2.2 | affected | custom | Unavailable | Unavailable | None listed |
| 2.3 | affected | custom | Unavailable | Unavailable | None listed |
| 3.3 | affected | custom | Unavailable | Unavailable | None listed |