CVE-2024-52504

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-12 · updated 2026-06-17
Weakness: CWE-754

Description

A vulnerability has been identified in SIPROTEC 4 6MD61 (All versions), SIPROTEC 4 6MD63 (All versions), SIPROTEC 4 6MD66 (All versions), SIPROTEC 4 6MD665 (All versions), SIPROTEC 4 7SA522 (All versions), SIPROTEC 4 7SA6 (All versions < V4.78), SIPROTEC 4 7SD5 (All versions < V4.78), SIPROTEC 4 7SD610 (All versions < V4.78), SIPROTEC 4 7SJ61 (All versions), SIPROTEC 4 7SJ62 (All versions), SIPROTEC 4 7SJ63 (All versions), SIPROTEC 4 7SJ64 (All versions), SIPROTEC 4 7SJ66 (All versions), SIPROTEC 4 7SS52 (All versions), SIPROTEC 4 7ST6 (All versions), SIPROTEC 4 7UM61 (All versions), SIPROTEC 4 7UM62 (All versions), SIPROTEC 4 7UT612 (All versions), SIPROTEC 4 7UT613 (All versions), SIPROTEC 4 7UT63 (All versions), SIPROTEC 4 7VE6 (All versions), SIPROTEC 4 7VK61 (All versions), SIPROTEC 4 7VU683 (All versions), SIPROTEC 4 Compact 7RW80 (All versions), SIPROTEC 4 Compact 7SD80 (All versions), SIPROTEC 4 Compact 7SJ80 (All versions), SIPROTEC 4 Compact 7SJ81 (All versions), SIPROTEC 4 Compact 7SK80 (All versions), SIPROTEC 4 Compact 7SK81 (All versions). Affected devices do not properly handle interrupted operations of file transfer. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the devices need to be restarted.

Affected products

Siemens SIPROTEC 4 6MD61: all versions
Siemens SIPROTEC 4 6MD63: all versions
Siemens SIPROTEC 4 6MD66: all versions
Siemens SIPROTEC 4 6MD665: all versions
Siemens SIPROTEC 4 7SA522: all versions
Siemens SIPROTEC 4 7SA6: before V4.78 — fixed in V4.78
Siemens SIPROTEC 4 7SD5: before V4.78 — fixed in V4.78
Siemens SIPROTEC 4 7SD610: before V4.78 — fixed in V4.78
Siemens SIPROTEC 4 7SJ61: all versions
Siemens SIPROTEC 4 7SJ62: all versions
Siemens SIPROTEC 4 7SJ63: all versions
Siemens SIPROTEC 4 7SJ64: all versions
Siemens SIPROTEC 4 7SJ66: all versions
Siemens SIPROTEC 4 7SS52: all versions
Siemens SIPROTEC 4 7ST6: all versions
Siemens SIPROTEC 4 7UM61: all versions
Siemens SIPROTEC 4 7UM62: all versions
Siemens SIPROTEC 4 7UT612: all versions
Siemens SIPROTEC 4 7UT613: all versions
Siemens SIPROTEC 4 7UT63: all versions
Siemens SIPROTEC 4 7VE6: all versions
Siemens SIPROTEC 4 7VK61: all versions
Siemens SIPROTEC 4 7VU683: all versions
Siemens SIPROTEC 4 Compact 7RW80: all versions
Siemens SIPROTEC 4 Compact 7SD80: all versions
Siemens SIPROTEC 4 Compact 7SJ80: all versions
Siemens SIPROTEC 4 Compact 7SJ81: all versions
Siemens SIPROTEC 4 Compact 7SK80: all versions
Siemens SIPROTEC 4 Compact 7SK81: all versions

How to fix

Upgrade to a fixed version: Siemens SIPROTEC 4 7SA6 V4.78; Siemens SIPROTEC 4 7SD5 V4.78; Siemens SIPROTEC 4 7SD610 V4.78. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/html/ssa-400089.html

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