CVE-2023-36380

highpriority · track · 31OT risk · elevatedEPSS 0.004 · 35 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 7.8 · high

Is it mine?

19 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug support)), CP-8050 MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug support)). The affected devices contain a hard-coded ID in the SSH `authorized_keys` configuration file. An attacker with knowledge of the corresponding private key could login to the device via SSH. Only devices with activated debug support are affected.

remediations

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

A vendor fix is available.

FixedCP-8031 MASTER MODULE (6MF2803-1AA00)siemens_psirt
Update to CPCI85 V05.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8050 MASTER MODULE (6MF2805-0AA00)siemens_psirt
Update to CPCI85 V05.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8031 MASTER MODULE (6MF2803-1AA00)cisa_csaf_ot
Update to CPCI85 V05.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/
FixedCP-8050 MASTER MODULE (6MF2805-0AA00)cisa_csaf_ot
Update to CPCI85 V05.11 or later version
https://support.industry.siemens.com/cs/ww/en/view/109804985/

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.1–9.8

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USCWE-798USCWE-798USCWE-798US

affected products (19)

Products and version ranges known to be affected.

Siemens SICAM A8000all versionscert_bundDEcpe:/h:siemens:sicam:a8000
Siemens SICAM CPall versionscert_bundDEcpe:/h:siemens:sicam:cp
Siemens SICAM HMI Comfort Outdoor Panelsall versionscert_bundDEcpe:/h:siemens:sicam:hmi_comfort_outdoor_panels
Siemens SICAM HMI KTP Mobile Panelsall versionscert_bundDEcpe:/h:siemens:sicam:hmi_ktp_mobile_panels
Siemens SICAM NET PC Softwareall versionscert_bundDEcpe:/h:siemens:sicam:net_pc_software
Siemens SICAM PASall versionscert_bundDEcpe:/h:siemens:sicam:pas
Siemens SICAM PQSall versionscert_bundDEcpe:/h:siemens:sicam:pqs
CP-8031 MASTER MODULE (6MF2803-1AA00)all versionscisa_csaf_otUS
CP-8050 MASTER MODULE (6MF2805-0AA00)all versionscisa_csaf_otUS
Siemens CP-8031 MASTER MODULE (6MF2803-1AA00)< CPCI85_V05.11_only_with_activated_debug_supportcisa_csaf_otUS
Siemens CP-8050 MASTER MODULE (6MF2805-0AA00)< CPCI85_V05.11_only_with_activated_debug_supportcisa_csaf_otUS
Siemens CP-8031 MASTER MODULEAll versions → CPCI85 V05.11 (only with activated debug support)enisa_euvdEU
Siemens CP-8050 MASTER MODULEAll versions → CPCI85 V05.11 (only with activated debug support)enisa_euvdEU
Siemens AG CP-8031 MASTER MODULE≤ CPCI85 05.11fstec_bduRU
Siemens AG CP-8050 MASTER MODULE≤ CPCI85 05.11fstec_bduRU
siemens cp-8031 firmware< 05.11nvdUScpe:2.3:o:siemens:cp-8031_firmware:*:*:*:*:*:*:*:*
siemens cp-8050 firmware< 05.11nvdUScpe:2.3:o:siemens:cp-8050_firmware:*:*:*:*:*:*:*:*
Siemens CP-8031 MASTER MODULE (6MF2803-1AA00)≤ All versions < CPCI85 V05.11 (only with activated debug support)siemens_psirtDE
Siemens CP-8050 MASTER MODULE (6MF2805-0AA00)≤ All versions < CPCI85 V05.11 (only with activated debug support)siemens_psirtDE

advisories (3)

Vendor and ecosystem advisories describing this.

SSA-134651SSA-134651: Hard Coded SSH ID in CPCI85 Firmware of SICAM A8000 Devices2023-10-10csaf · siemens_psirtDE
The CPCI85 firmware of SICAM A8000 CP-8031 and CP-8050 contains a hard-coded ID in the SSH authorized_keys configuration file. An attacker with knowledge of the corresponding credential could login to the device via SSH. Only devices with activated debug support are affected. Siemens has released updates for the affected products and recommends to update to the latest versions.
WID-SEC-W-2023-2603Siemens SICAM: Mehrere SchwachstellenDeutsch2023-10-09csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SICAM ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, seine Privilegien zu erweitern und Daten zu manipulieren.
ICSA-23-285-09Siemens CPCI85 Firmware of SICAM A8000 Devices2023-10-10icsa · cisa_csaf_otUS
The CPCI85 firmware of SICAM A8000 CP-8031 and CP-8050 contains a hard-coded ID in the SSH authorized_keys configuration file. An attacker with knowledge of the corresponding credential could login to the device via SSH. Only devices with activated debug support are affected. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

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

published 2023-10-10modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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