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CVE-2025-40570

LOW
2.4
CVSS Score
Published: August 12, 2025 at 11:17 AM UTC
Updated: June 17, 2026 at 09:21 AM UTC
36 products affected across 1 vendorSIPROTEC 5 6MU85SIPROTEC 5 7SS85SIPROTEC 5 6MD89

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Severity
LOW2.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V10.0), SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SA82 (CP150) (All versions < V10.0), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SD82 (CP150) (All versions < V10.0), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SJ81 (CP150) (All versions < V10.0), SIPROTEC 5 7SJ82 (CP150) (All versions < V10.0), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SK82 (CP150) (All versions < V10.0), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SL82 (CP150) (All versions < V10.0), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7ST85 (CP300) (All versions < V10.0), SIPROTEC 5 7ST86 (CP300) (All versions < V10.0), SIPROTEC 5 7SX82 (CP150) (All versions < V10.0), SIPROTEC 5 7SX85 (CP300) (All versions < V10.0), SIPROTEC 5 7SY82 (CP150) (All versions < V10.0), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7UT82 (CP150) (All versions < V10.0), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V10.0), SIPROTEC 5 7VU85 (CP300) (All versions < V10.0), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V10.0). Affected devices do not properly limit the bandwidth for incoming network packets over their local USB port. This could allow an attacker with physical access to send specially crafted packets with high bandwidth to the affected devices thus forcing them to exhaust their memory and stop responding to any network traffic via the local USB port. Affected devices reset themselves automatically after a successful attack. The protection function is not affected of this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SIPROTEC 5 6MD84· Siemens
60%
v < V10.0
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 6MD85· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 6MD86· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 6MD89· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 6MU85· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 7KE85· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 7SA82· Siemens
60%
v < V10.0
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 7SA86· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 7SA87· Siemens
60%
V7.80 ≤ v < V10.07.80
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement
SIPROTEC 5 7SD82· Siemens
60%
v < V10.0
Affected range stops below V10.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]
https://cert-portal.siemens.com/productcert/html/ssa-894058.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.4LOWsiemens
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-770

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