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Fencer Intel
medium 5.3

CVE-2025-40742 json

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V11.0), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5…

published last yr. modified 4mo ago also EUVD-2025-20427

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V11.0), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions < V11.0), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions < V11.0), SIPROTEC 5 6MD89 (CP300) (All versions < V11.0), SIPROTEC 5 6MD89 (CP300) V9.6x (All versions < V11.0), SIPROTEC 5 6MU85 (CP300) (All versions < V11.0), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions < V11.0), SIPROTEC 5 7SA82 (CP100) (All versions), SIPROTEC 5 7SA82 (CP150) (All versions < V11.0), SIPROTEC 5 7SA84 (CP200) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions < V11.0), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions < V11.0), SIPROTEC 5 7SD82 (CP100) (All versions), SIPROTEC 5 7SD82 (CP150) (All versions < V11.0), SIPROTEC 5 7SD84 (CP200) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions < V11.0), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions < V11.0), SIPROTEC 5 7SJ81 (CP100) (All versions), SIPROTEC 5 7SJ81 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ82 (CP100) (All versions), SIPROTEC 5 7SJ82 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions < V11.0), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions < V11.0), SIPROTEC 5 7SK82 (CP100) (All versions), SIPROTEC 5 7SK82 (CP150) (All versions < V11.0), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions < V11.0), SIPROTEC 5 7SL82 (CP100) (All versions), SIPROTEC 5 7SL82 (CP150) (All versions < V11.0), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions < V11.0), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions < V11.0), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions < V11.0), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions < V11.0), SIPROTEC 5 7ST86 (CP300) (All versions < V11.0), SIPROTEC 5 7SX82 (CP150) (All versions < V11.0), SIPROTEC 5 7SX85 (CP300) (All versions < V11.0), SIPROTEC 5 7SY82 (CP150) (All versions < V11.0), SIPROTEC 5 7UM85 (CP300) (All versions < V11.0), SIPROTEC 5 7UT82 (CP100) (All versions), SIPROTEC 5 7UT82 (CP150) (All versions < V11.0), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions < V11.0), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions < V11.0), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions < V11.0), SIPROTEC 5 7VE85 (CP300) (All versions < V11.0), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions < V11.0), SIPROTEC 5 7VU85 (CP300) (All versions < V11.0), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V11.0). The affected devices include session identifiers in URL requests for certain functionalities. This could allow an attacker to retrieve sensitive session data from browser history, logs, or other storage mechanisms, potentially leading to unauthorized access.

Patch / fix

  • Siemens SIPROTEC 5 6MD84 (CP300) V11.0
  • Siemens SIPROTEC 5 6MD85 (CP300) V11.0
  • Siemens SIPROTEC 5 6MD86 (CP300) V11.0
  • Siemens SIPROTEC 5 6MD89 (CP300) V11.0
  • Siemens SIPROTEC 5 6MD89 (CP300) V9.6x V11.0
  • Siemens SIPROTEC 5 6MU85 (CP300) V11.0
  • Siemens SIPROTEC 5 7KE85 (CP300) V11.0
  • Siemens SIPROTEC 5 7SA82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SA86 (CP300) V11.0
  • Siemens SIPROTEC 5 7SA87 (CP300) V11.0
  • Siemens SIPROTEC 5 7SD82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SD86 (CP300) V11.0
  • Siemens SIPROTEC 5 7SD87 (CP300) V11.0
  • Siemens SIPROTEC 5 7SJ81 (CP150) V11.0
  • Siemens SIPROTEC 5 7SJ82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SJ85 (CP300) V11.0
  • Siemens SIPROTEC 5 7SJ86 (CP300) V11.0
  • Siemens SIPROTEC 5 7SK82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SK85 (CP300) V11.0
  • Siemens SIPROTEC 5 7SL82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SL86 (CP300) V11.0
  • Siemens SIPROTEC 5 7SL87 (CP300) V11.0
  • Siemens SIPROTEC 5 7SS85 (CP300) V11.0
  • Siemens SIPROTEC 5 7ST85 (CP300) V11.0
  • Siemens SIPROTEC 5 7ST86 (CP300) V11.0
  • Siemens SIPROTEC 5 7SX82 (CP150) V11.0
  • Siemens SIPROTEC 5 7SX85 (CP300) V11.0
  • Siemens SIPROTEC 5 7SY82 (CP150) V11.0

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Vendor advisories

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

cisa ICSA-25-191-06 updated cvss 5.3

Siemens SIPROTEC 5

  • Siemens SIPROTEC 5 6MD84 (CP300) < 11.0 Siemens SIPROTEC 5 6MD85 (CP300) < 11.0 Siemens SIPROTEC 5 6MD86 (CP300) < 11.0 Siemens SIPROTEC 5 6MD89 (CP300) < 11.0 Siemens SIPROTEC 5 6MD89 (CP300) V9.6x < 11.0 Siemens SIPROTEC 5 6MU85 (CP300) < 11.0
    +1 more products
    Siemens SIPROTEC 5 7KE85 (CP300) < 11.0
    affected: fixed in V11.0 support.industry.siemens.com
  • Siemens SIPROTEC 5 7SA82 (CP100)
    affected: no fix available
  • Siemens SIPROTEC 5 7SA82 (CP150) < 11.0
    affected: fixed in V11.0 support.industry.siemens.com
  • Siemens SIPROTEC 5 7SA86 (CP300) < 11.0 Siemens SIPROTEC 5 7SA87 (CP300) < 11.0
    affected: fixed in V11.0 support.industry.siemens.com
  • Siemens SIPROTEC 5 7SD82 (CP100)
    affected: no fix available
  • Siemens SIPROTEC 5 7SD82 (CP150) < 11.0
    affected: fixed in V11.0 support.industry.siemens.com
  • Siemens SIPROTEC 5 7SD86 (CP300) < 11.0 Siemens SIPROTEC 5 7SD87 (CP300) < 11.0
    affected: fixed in V11.0 support.industry.siemens.com
  • Siemens SIPROTEC 5 7SJ81 (CP100)
    affected: no fix available
show 17 more

4 more affected, 20 more not 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
last yr.

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CNA 4.0 6.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 6.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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 6MD89 (CP300) V9.6x
  • 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 7SA84 (CP200)
  • 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 7SD84 (CP200)
  • 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)

Classification

Weakness
  • CWE-598 Use of HTTP Request With Sensitive Query String

References

Sources

Fencer Intel 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.