Siemens SIPROTEC 5 Compact 7SX800 unrestricted upload

CVSS Meta Temp Score
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CTI Interest Score
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5.4$5k-$25k0.87

Summaryinfo

A vulnerability was found in Siemens SIPROTEC 5 6MD84, SIPROTEC 5 6MD85, SIPROTEC 5 6MD86, SIPROTEC 5 6MD89, SIPROTEC 5 6MU85, SIPROTEC 5 7KE85, SIPROTEC 5 7SA82, SIPROTEC 5 7SA86, SIPROTEC 5 7SA87, SIPROTEC 5 7SD82, SIPROTEC 5 7SD86, SIPROTEC 5 7SD87, SIPROTEC 5 7SJ81, SIPROTEC 5 7SJ82, SIPROTEC 5 7SJ85, SIPROTEC 5 7SJ86, SIPROTEC 5 7SK82, SIPROTEC 5 7SK85, SIPROTEC 5 7SL82, SIPROTEC 5 7SL86, SIPROTEC 5 7SL87, SIPROTEC 5 7SS85, SIPROTEC 5 7ST85, SIPROTEC 5 7ST86, SIPROTEC 5 7SX82, SIPROTEC 5 7SX85, SIPROTEC 5 7SY82, SIPROTEC 5 7UM85, SIPROTEC 5 7UT82, SIPROTEC 5 7UT85, SIPROTEC 5 7UT86, SIPROTEC 5 7UT87, SIPROTEC 5 7VE85, SIPROTEC 5 7VK87, SIPROTEC 5 7VU85 and SIPROTEC 5 Compact 7SX800. It has been declared as critical. Affected by this issue is some unknown functionality. The manipulation results in unrestricted upload. This vulnerability is known as CVE-2025-40808. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Siemens SIPROTEC 5 6MD84, SIPROTEC 5 6MD85, SIPROTEC 5 6MD86, SIPROTEC 5 6MD89, SIPROTEC 5 6MU85, SIPROTEC 5 7KE85, SIPROTEC 5 7SA82, SIPROTEC 5 7SA86, SIPROTEC 5 7SA87, SIPROTEC 5 7SD82, SIPROTEC 5 7SD86, SIPROTEC 5 7SD87, SIPROTEC 5 7SJ81, SIPROTEC 5 7SJ82, SIPROTEC 5 7SJ85, SIPROTEC 5 7SJ86, SIPROTEC 5 7SK82, SIPROTEC 5 7SK85, SIPROTEC 5 7SL82, SIPROTEC 5 7SL86, SIPROTEC 5 7SL87, SIPROTEC 5 7SS85, SIPROTEC 5 7ST85, SIPROTEC 5 7ST86, SIPROTEC 5 7SX82, SIPROTEC 5 7SX85, SIPROTEC 5 7SY82, SIPROTEC 5 7UM85, SIPROTEC 5 7UT82, SIPROTEC 5 7UT85, SIPROTEC 5 7UT86, SIPROTEC 5 7UT87, SIPROTEC 5 7VE85, SIPROTEC 5 7VK87, SIPROTEC 5 7VU85 and SIPROTEC 5 Compact 7SX800. Affected is some unknown processing. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2025-40808 since 04/16/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/09/2026). The MITRE ATT&CK project declares the attack technique as T1608.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210083). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (siemens): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/16/2025 CVE reserved
06/09/2026 +419 days Advisory disclosed
06/09/2026 +0 days VulDB entry created
06/09/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-139483
Status: Confirmed

CVE: CVE-2025-40808 (🔒)
GCVE (CVE): GCVE-0-2025-40808
GCVE (VulDB): GCVE-100-369480
EUVD: 🔒

Entryinfo

Created: 06/09/2026 12:33
Updated: 06/09/2026 16:25
Changes: 06/09/2026 12:33 (73), 06/09/2026 16:25 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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