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

published 2025-07-08 16 mo ago modified 2026-06-17 4 mo 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

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

fixed in 28

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

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 2026-05-14 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 productsfewer

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

Siemens SIPROTEC 5 7SJ81 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SJ82 (CP100)
affected: no fix available
Siemens SIPROTEC 5 7SJ82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SJ85 (CP300) < 11.0 Siemens SIPROTEC 5 7SJ86 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SK82 (CP100)
affected: no fix available
Siemens SIPROTEC 5 7SK82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SK85 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SL82 (CP100)
affected: no fix available
Siemens SIPROTEC 5 7SL82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SL86 (CP300) < 11.0 Siemens SIPROTEC 5 7SL87 (CP300) < 11.0 Siemens SIPROTEC 5 7SS85 (CP300) < 11.0 Siemens SIPROTEC 5 7ST85 (CP300) < 11.0 Siemens SIPROTEC 5 7ST86 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SX82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SX85 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7SY82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7UM85 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7UT82 (CP100)
affected: no fix available
Siemens SIPROTEC 5 7UT82 (CP150) < 11.0
affected: fixed in V11.0 support.industry.siemens.com
Siemens SIPROTEC 5 7UT85 (CP300) < 11.0 Siemens SIPROTEC 5 7UT86 (CP300) < 11.0 Siemens SIPROTEC 5 7UT87 (CP300) < 11.0
affected: fixed in V11.0 support.industry.siemens.com

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: 16 mo ago (2025-07-08)

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

cert-portal.siemens.com /productcert/html/ssa-904646.html

Sources

CVE List CVE-2025-40742
NVD CVE-2025-40742

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.

Summary