CVE-2023-40151

criticalpriority · track · 39EPSS 0.011 · 67 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.15% (67th) EPSS

CVSS 9.8 · critical

Is it mine?

30 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

When user authentication is not enabled the shell can execute commands with the highest privileges. Red Lion SixTRAK and VersaTRAK Series RTUs with authenticated users enabled (UDR-A) any Sixnet UDR message will meet an authentication challenge over UDP/IP. When the same message comes over TCP/IP the RTU will simply accept the message with no authentication challenge.

remediations

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

A vendor fix is available.

FixedST-IPm-6350cisa_csaf_ot
ST-IPm-6350/VT-mIPm-245-D/VT-mIPm-135-D/VT-IPm2m-213-D/VT-IPm2m-113-D - Install 855_patch1_tcp_udr_all_blocked.tar.gz
FixedST-IPm-8460cisa_csaf_ot
ST-IPm-8460 - Install 8313_patch1_tcp_udr_all_blocked.tar.gz
FixedVT-IPm2m-113-Dcisa_csaf_ot
ST-IPm-6350/VT-mIPm-245-D/VT-mIPm-135-D/VT-IPm2m-213-D/VT-IPm2m-113-D - Install 855_patch1_tcp_udr_all_blocked.tar.gz
FixedVT-IPm2m-213-Dcisa_csaf_ot
ST-IPm-6350/VT-mIPm-245-D/VT-mIPm-135-D/VT-IPm2m-213-D/VT-IPm2m-113-D - Install 855_patch1_tcp_udr_all_blocked.tar.gz
FixedVT-mIPm-135-Dcisa_csaf_ot
ST-IPm-6350/VT-mIPm-245-D/VT-mIPm-135-D/VT-IPm2m-213-D/VT-IPm2m-113-D - Install 855_patch1_tcp_udr_all_blocked.tar.gz
FixedVT-mIPm-245-Dcisa_csaf_ot
ST-IPm-6350/VT-mIPm-245-D/VT-mIPm-135-D/VT-IPm2m-213-D/VT-IPm2m-113-D - Install 855_patch1_tcp_udr_all_blocked.tar.gz
MitigationST-IPm-6350cisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:
MitigationST-IPm-8460cisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:
MitigationVT-IPm2m-113-Dcisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:
MitigationVT-IPm2m-213-Dcisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:
MitigationVT-mIPm-135-Dcisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:
MitigationVT-mIPm-245-Dcisa_csaf_ot
Add one DROP rule which will drop all TCP/IP packet coming on UDR port 1594 by typing the following commands:

cvss

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

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · CISA US

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ics-cert@hq.dhs.gov USexploitability 3.9 · impact 6

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/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-479USCWE-749USCWE-749US

affected products (30)

Products and version ranges known to be affected.

ST-IPm-6350: >=4.9.114all versionscisa_csaf_otUS
ST-IPm-8460: >=6.0.202all versionscisa_csaf_otUS
VT-IPm2m-113-D: >=4.9.114all versionscisa_csaf_otUS
VT-IPm2m-213-D: >=4.9.114all versionscisa_csaf_otUS
VT-mIPm-135-D: >=4.9.114all versionscisa_csaf_otUS
VT-mIPm-245-D: >=4.9.114all versionscisa_csaf_otUS
Red Lion ST-IPm-6350≥ 4.9.114cisa_csaf_otUS
Red Lion ST-IPm-8460≥ 6.0.202cisa_csaf_otUS
Red Lion VT-IPm2m-113-D≥ 4.9.114cisa_csaf_otUS
Red Lion VT-IPm2m-213-D≥ 4.9.114cisa_csaf_otUS
Red Lion VT-mIPm-135-D≥ 4.9.114cisa_csaf_otUS
Red Lion VT-mIPm-245-D≥ 4.9.114cisa_csaf_otUS
Red Lion Controls ST-IPm-6350≤ 4.9.114enisa_euvdEU
Red Lion Controls ST-IPm-8460≤ 6.0.202enisa_euvdEU
Red Lion Controls VT-IPm2m-113-D≤ 4.9.114enisa_euvdEU
Red Lion Controls VT-IPm2m-213-D≤ 4.9.114enisa_euvdEU
Red Lion Controls VT-mIPm-135-D≤ 4.9.114enisa_euvdEU
Red Lion Controls VT-mIPm-245-D≤ 4.9.114enisa_euvdEU
Red Lion Controls, Inc. ST-IPm-6350≤ 4.9.114fstec_bduRU
Red Lion Controls, Inc. ST-IPm-8460≤ 6.0.202fstec_bduRU

showing 20 of 30

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-23-320-01Red Lion Sixnet RTUs2023-11-16icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an unauthenticated attacker to execute commands with high privileges.

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 NVD CVE.org MITRE

published 2023-11-21modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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