CVE-2024-50310

highpriority · track · 0OT risk · elevatedEPSS 0.005 · 41 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (41st) EPSS

CVSS 7.5 · high

Is it mine?

7 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0) (All versions >= V4.0.44 < V4.0.50). Affected devices do not properly handle authorization. This could allow an unauthenticated remote attacker to gain access to the filesystem.

remediations

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

A vendor fix is available.

FixedSIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)siemens_psirt
Update to V4.0.50 or later version
https://support.industry.siemens.com/cs/ww/en/view/109976120/
FixedSIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)cisa_csaf_ot
Update to V4.0.50 or later version
https://support.industry.siemens.com/cs/ww/en/view/109976120/
MitigationSIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)siemens_psirt
Restrict access to port 8448/tcp to trusted systems only
MitigationSIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)cisa_csaf_ot
Restrict access to port 8448/tcp to trusted systems only

cvss

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

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · NCSC-NL NL

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · productcert@siemens.com DEexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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:Xsecondary · productcert@siemens.com DE

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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-863USCWE-863USCWE-863USCWE-863USCWE-863US

affected products (7)

Products and version ranges known to be affected.

SIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)all versionscisa_csaf_otUS
Siemens SIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)V4.0.44| → V4.0.50cisa_csaf_otUS
Siemens SIMATIC CP 1543-1 V4.0V4.0.44 → V4.0.50enisa_euvdEU
Siemens AG SIMATIC CP 1543-1≤ c 4.0.44 до 4.0.50fstec_bduRU
simatic_cp_1543-1_v4.0all versionsncsc_nlNLcpe:2.3:a:siemens:simatic_cp_1543-1_v4.0:*:*:*:*:*:*:*:*
siemens simatic cp 1543-1 firmware4.0.44 → 4.0.50nvdUScpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:*
Siemens SIMATIC CP 1543-1 V4.0 (6GK7543-1AX10-0XE0)≤ vers:all/>=V4.0.44|<V4.0.50siemens_psirtDE

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2024-0433Kwetsbaarheden verholpen in Siemens productenNL2024-11-12csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als Mendix, RUGGEDCOM, SCALANCE, SIMATIC en SINEC.
SSA-654798SSA-654798: Incorrect Authorization Vulnerability in SIMATIC CP 1543-1 Devices2024-11-12csaf · siemens_psirtDE
SIMATIC CP 1543-1 devices contain an Incorrect Authorization vulnerability that could allow an unauthenticated attacker to gain access to the filesystem. Siemens has released a new version for SIMATIC CP 1543-1 V4.0 and recommends to update to the latest version.
ICSA-24-319-11Siemens SIMATIC CP2024-11-12icsa · cisa_csaf_otUS
SIMATIC CP 1543-1 devices contain an Incorrect Authorization vulnerability that could allow an unauthenticated attacker to gain access to the filesystem. Siemens has released a new version for SIMATIC CP 1543-1 V4.0 and recommends to update to the latest version.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

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

published 2024-11-12modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan