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Fencer Vulns
medium 6.1

CVE-2025-40808 json

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (…

published 2026-06-09 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2025-210083

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-174-02 updated cvss 6.1

Siemens SIPROTEC 5 Using DIGSI5 Protocol

  • Siemens SIPROTEC 5 6MD84 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 6MD85 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 6MD85 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 6MD86 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 6MD86 (CP300) Siemens SIPROTEC 5 6MD89 (CP300) Siemens SIPROTEC 5 6MU85 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7KE85 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7KE85 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SA82 (CP100)
    affected: mitigation, no fix planned
show 30 more
  • Siemens SIPROTEC 5 7SA82 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SA86 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SA86 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SA87 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SA87 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SD82 (CP100)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SD82 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SD86 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SD86 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SD87 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SD87 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SJ81 (CP100)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SJ81 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SJ82 (CP100)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SJ82 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SJ85 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SJ85 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SJ86 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SJ86 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SK82 (CP100)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SK82 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SK85 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SK85 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SL82 (CP100)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SL82 (CP150)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SL86 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SL86 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SL87 (CP200)
    affected: mitigation, no fix planned
  • Siemens SIPROTEC 5 7SL87 (CP300)
    affected: mitigation, no fix available
  • Siemens SIPROTEC 5 7SS85 (CP200)
    affected: mitigation, no fix planned

21 more affected in the full advisory

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CNA 4.0 6.9 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • 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)

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.