CVE-2024-54017

mediumpriority · track · 0EPSS 0.003 · 22 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (22nd) EPSS

CVSS 5.3 · medium

Is it mine?

322 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

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 >= V7.80 < V11.0), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SA82 (CP100) (All versions >= V7.80), 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 >= V7.80 < V11.0), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SD82 (CP100) (All versions >= V7.80), 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 >= V7.80 < V11.0), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ81 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ81 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ82 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SK82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SK82 (CP150) (All versions < V11.0), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SL82 (CP150) (All versions < V11.0), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < 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 >= V7.80 < V11.0), SIPROTEC 5 7UT82 (CP100) (All versions >= V7.80), SIPROTEC 5 7UT82 (CP150) (All versions < V11.0), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VU85 (CP300) (All versions < V11.0), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V11.0). Affected devices do not use sufficiently random values to create session identifiers. This could allow an unauthenticated remote attacker to brute force a session identifier and gain read access to limited information from the web server without authorization.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSIPROTEC 5 6MD84 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD89 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MU85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7KE85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SA82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SA86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SA87 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SD82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SD86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SD87 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SJ81 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SJ82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SJ85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SJ86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SK82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SK85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SL82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SL86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SL87 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SS85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7ST85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7ST86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SX82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SX85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SY82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7UM85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT82 (CP150)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7UT85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT86 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT87 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VE85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VK87 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VU85 (CP300)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 Compact 7SX800 (CP050)siemens_psirt
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109796884/
FixedSIPROTEC 5 6MD84 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MD89 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 6MU85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7KE85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SA82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SA86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SA87 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SD82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SD86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SD87 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SJ81 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SJ82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SJ85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SJ86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SK82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SK85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SL82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SL86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SL87 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SS85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7ST85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7ST86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SX82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7SX85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7SY82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7UM85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT82 (CP150)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109757433/
FixedSIPROTEC 5 7UT85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT86 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7UT87 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VE85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VK87 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 7VU85 (CP300)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109814150/
FixedSIPROTEC 5 Compact 7SX800 (CP050)cisa_csaf_ot
Update to V11.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109796884/
No fix availableSIPROTEC 5 7SA82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SD82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SJ81 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SJ82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SK82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SL82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7UT82 (CP100)siemens_psirt
Currently no fix is available
No fix availableSIPROTEC 5 7SA82 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7SD82 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7SJ81 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7SJ82 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7SK82 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7SL82 (CP100)cisa_csaf_ot
Currently no fix is available
No fix availableSIPROTEC 5 7UT82 (CP100)cisa_csaf_ot
Currently no fix is available

cvss

Technical severity, 0–10. One row per scoring source.

6.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · NCSC-NL NL

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · productcert@siemens.com DEexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · Siemens ProductCERT DE

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · CISA US

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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:Xsecondary · productcert@siemens.com DE

v4.02.7lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-334USCWE-334USCWE-334USCWE-334USCWE-334US

affected products (322)

Products and version ranges known to be affected.

Siemens SIPROTEC 5 Compact 7SX800 (CP050) <V11.0all versionscert_bundDE
Siemens SIPROTEC 5-CP100 Devicesall versionscert_bundDEcpe:/h:siemens:siprotec:5_-_cp100_devices
Siemens SIPROTEC 5-CP150 Devices <V11.0all versionscert_bundDE
Siemens SIPROTEC 5-CP300 Devices <V11.0all versionscert_bundDE
Siemens SIPROTEC≤ 5-CP150 Devices <V11.0cert_bundDE
Siemens SIPROTEC≤ 5-CP300 Devices <V11.0cert_bundDE
Siemens SIPROTEC≤ 5 Compact 7SX800 (CP050) <V11.0cert_bundDE
SIPROTEC 5 6MD84 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 6MD85 (CP200)all versionsnot affectedcisa_csaf_otUS
SIPROTEC 5 6MD85 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 6MD86 (CP200)all versionsnot affectedcisa_csaf_otUS
SIPROTEC 5 6MD86 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 6MD89 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 6MU85 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 7KE85 (CP200)all versionsnot affectedcisa_csaf_otUS
SIPROTEC 5 7KE85 (CP300)all versionscisa_csaf_otUS
SIPROTEC 5 7SA82 (CP100)all versionscisa_csaf_otUS
SIPROTEC 5 7SA82 (CP150)all versionscisa_csaf_otUS
SIPROTEC 5 7SA84 (CP200)all versionsnot affectedcisa_csaf_otUS
SIPROTEC 5 7SA86 (CP200)all versionsnot affectedcisa_csaf_otUS

showing 20 of 322

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2026-0147Kwetsbaarheden verholpen in Siemens-productenNL2026-05-13csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in verschillende (OT-)producten. Het gaat onder andere om producten in de Siemens RUGGEDCOM-, SCALANCE-, SIMATIC-, SIMIT-, SINAMICS-, SIPROTEC-, SENTRON- en Solid Edge-productreeksen.
SSA-786884SSA-786884: Insufficient Randomness in Session Identifier Vulnerability in SIPROTEC 52026-05-12csaf · siemens_psirtDE
The SIPROTEC 5 devices do not use sufficiently random numbers to generate session identifiers. This could facilitate a brute-force attack against a valid session identifier which could allow an unauthenticated remote attacker to hijack a valid user session. The affected session identifiers are only used in a subset of the endpoints that are provided by the affected products. Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.
WID-SEC-W-2026-1473Siemens SIPROTEC 5-Geräten: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2026-05-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Siemens SIPROTEC 5-Geräten ausnutzen, um Informationen offenzulegen.
ICSA-26-134-13Siemens SIPROTEC 52026-05-12icsa · cisa_csaf_otUS
The SIPROTEC 5 devices do not use sufficiently random numbers to generate session identifiers. This could facilitate a brute-force attack against a valid session identifier which could allow an unauthenticated remote attacker to hijack a valid user session. The affected session identifiers are only used in a subset of the endpoints that are provided by the affected products. Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.

also known as (5)

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cnnvd enisa_euvd fstec_bdu cert_bund cisa_csaf_ot ncsc_nl siemens_psirt NVD CVE.org MITRE

published 2026-05-12modified 2026-07-02

references (4)

External citations — patches, advisories, analysis.

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