CVE-2025-40808: Malicious File Upload

Published Jun 9, 2026
·
Updated

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions), SIPROTEC 5 6MD89 (CP300) (All versions), SIPROTEC 5 6MU85 (CP300) (All versions), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions), SIPROTEC 5 7SA82 (CP100) (All versions), SIPROTEC 5 7SA82 (CP150) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions), SIPROTEC 5 7SD82 (CP100) (All versions), SIPROTEC 5 7SD82 (CP150) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions), SIPROTEC 5 7SJ81 (CP100) (All versions), SIPROTEC 5 7SJ81 (CP150) (All versions), SIPROTEC 5 7SJ82 (CP100) (All versions), SIPROTEC 5 7SJ82 (CP150) (All versions), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions), SIPROTEC 5 7SK82 (CP100) (All versions), SIPROTEC 5 7SK82 (CP150) (All versions), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions), SIPROTEC 5 7SL82 (CP100) (All versions), SIPROTEC 5 7SL82 (CP150) (All versions), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions), SIPROTEC 5 7ST86 (CP300) (All versions), SIPROTEC 5 7SX82 (CP150) (All versions), SIPROTEC 5 7SX85 (CP300) (All versions), SIPROTEC 5 7SY82 (CP150) (All versions), SIPROTEC 5 7UM85 (CP300) (All versions), SIPROTEC 5 7UT82 (CP100) (All versions), SIPROTEC 5 7UT82 (CP150) (All versions), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions), SIPROTEC 5 7VE85 (CP300) (All versions), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions), SIPROTEC 5 7VU85 (CP300) (All versions), SIPROTEC 5 Compact 7SX800 (CP050) (All versions). The affected application allows authenticated users to upload arbitrary files using DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, that could cause denial of service condition and potentially lead to code execution.

Affected Software

61 affected components
Siemens SIPROTEC 5 6MD84 (CP300)>=
Siemens SIPROTEC 5 6MD85 (CP200)>=
Siemens SIPROTEC 5 6MD85 (CP300)>=
Siemens SIPROTEC 5 6MD86 (CP200)>=
Siemens SIPROTEC 5 6MD86 (CP300)>=
Siemens SIPROTEC 5 6MD89 (CP300)>=
Siemens SIPROTEC 5 6MU85 (CP300)>=
Siemens SIPROTEC 5 7KE85 (CP200)>=
Siemens SIPROTEC 5 7KE85 (CP300)>=
Siemens SIPROTEC 5 7SA82 (CP100)>=
Siemens SIPROTEC 5 7SA82 (CP150)>=
Siemens SIPROTEC 5 7SA86 (CP200)>=
Siemens SIPROTEC 5 7SA86 (CP300)>=
Siemens SIPROTEC 5 7SA87 (CP200)>=
Siemens SIPROTEC 5 7SA87 (CP300)>=
Siemens SIPROTEC 5 7SD82 (CP100)>=
Siemens SIPROTEC 5 7SD82 (CP150)>=
Siemens SIPROTEC 5 7SD86 (CP200)>=
Siemens SIPROTEC 5 7SD86 (CP300)>=
Siemens SIPROTEC 5 7SD87 (CP200)>=
Siemens SIPROTEC 5 7SD87 (CP300)>=
Siemens SIPROTEC 5 7SJ81 (CP100)>=
Siemens SIPROTEC 5 7SJ81 (CP150)>=
Siemens SIPROTEC 5 7SJ82 (CP100)>=
Siemens SIPROTEC 5 7SJ82 (CP150)>=
Siemens SIPROTEC 5 7SJ85 (CP200)>=
Siemens SIPROTEC 5 7SJ85 (CP300)>=
Siemens SIPROTEC 5 7SJ86 (CP200)>=
Siemens SIPROTEC 5 7SJ86 (CP300)>=
Siemens SIPROTEC 5 7SK82 (CP100)>=
Siemens SIPROTEC 5 7SK82 (CP150)>=
Siemens SIPROTEC 5 7SK85 (CP200)>=
Siemens SIPROTEC 5 7SK85 (CP300)>=
Siemens SIPROTEC 5 7SL82 (CP100)>=
Siemens SIPROTEC 5 7SL82 (CP150)>=
Siemens SIPROTEC 5 7SL86 (CP200)>=
Siemens SIPROTEC 5 7SL86 (CP300)>=
Siemens SIPROTEC 5 7SL87 (CP200)>=
Siemens SIPROTEC 5 7SL87 (CP300)>=
Siemens SIPROTEC 5 7SS85 (CP200)>=
Siemens SIPROTEC 5 7SS85 (CP300)>=
Siemens SIPROTEC 5 7ST85 (CP200)>=
Siemens SIPROTEC 5 7ST85 (CP300)>=
Siemens SIPROTEC 5 7ST86 (CP300)>=
Siemens SIPROTEC 5 7SX82 (CP150)>=
Siemens SIPROTEC 5 7SX85 (CP300)>=
Siemens SIPROTEC 5 7SY82 (CP150)>=
Siemens SIPROTEC 5 7UM85 (CP300)>=
Siemens SIPROTEC 5 7UT82 (CP100)>=
Siemens SIPROTEC 5 7UT82 (CP150)>=
Siemens SIPROTEC 5 7UT85 (CP200)>=
Siemens SIPROTEC 5 7UT85 (CP300)>=
Siemens SIPROTEC 5 7UT86 (CP200)>=
Siemens SIPROTEC 5 7UT86 (CP300)>=
Siemens SIPROTEC 5 7UT87 (CP200)>=
Siemens SIPROTEC 5 7UT87 (CP300)>=
Siemens SIPROTEC 5 7VE85 (CP300)>=
Siemens SIPROTEC 5 7VK87 (CP200)>=
Siemens SIPROTEC 5 7VK87 (CP300)>=
Siemens SIPROTEC 5 7VU85 (CP300)>=
Siemens SIPROTEC 5 Compact 7SX800 (CP050)>=

Event History

Jun 9, 2026
CVE Published
via MITRE·08:46 AM
Data Sourced
via MITRE·08:46 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 AM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2025-40808?

The severity of CVE-2025-40808 is assessed as medium with a score of 6.1.

2

What is CVE-2025-40808 related to?

CVE-2025-40808 is related to a vulnerability in multiple Siemens SIPROTEC 5 models that allows for malicious file uploads.

3

How do I fix CVE-2025-40808?

To fix CVE-2025-40808, users should apply all relevant security patches provided by Siemens for their specific SIPROTEC 5 device.

4

Which devices are affected by CVE-2025-40808?

CVE-2025-40808 affects all versions of Siemens SIPROTEC 5 models, including the 6MD84, 6MD85, 6MD86, 6MD89, and others.

5

What type of attack does CVE-2025-40808 facilitate?

CVE-2025-40808 facilitates a malicious file upload attack that can lead to unauthorized information modifications.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203