HOMEVULNERABILITIESCVE-2023-40151
CRITICAL

CVE-2023-40151

CWE-749Published: November 21, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2023-40151 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

redlioncontrols12 product(s)
st-ipm-6350 firmwarest-ipm-6350st-ipm-8460 firmwarest-ipm-8460vt-mipm-135-d firmwarevt-mipm-135-dvt-mipm-245-d firmwarevt-mipm-245-dvt-ipm2m-213-d firmwarevt-ipm2m-213-dvt-ipm2m-113-d firmwarevt-ipm2m-113-d
Source: NVD CPE · 12 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://support.redlion.net/hc/en-us/articles/19339209248269-RLCSIM-2023-05-Authentication-Bypass-and-Remote-Code-Execution
PATCHhttps://support.redlion.net/hc/en-us/articles/19339209248269-RLCSIM-2023-05-Authentication-Bypass-and-Remote-Code-Execution
ADVISORYhttps://www.cisa.gov/news-events/ics-advisories/icsa-23-320-01
ADVISORYhttps://www.cisa.gov/news-events/ics-advisories/icsa-23-320-01

All References (4)

→
https://support.redlion.net/hc/en-us/articles/19339209248269-RLCSIM-2023-05-Authentication-Bypass-and-Remote-Code-ExecutionMitigation · Patch · Vendor Advisory
→
https://www.cisa.gov/news-events/ics-advisories/icsa-23-320-01Third Party Advisory · US Government Resource
→
https://support.redlion.net/hc/en-us/articles/19339209248269-RLCSIM-2023-05-Authentication-Bypass-and-Remote-Code-ExecutionMitigation · Patch · Vendor Advisory
→
https://www.cisa.gov/news-events/ics-advisories/icsa-23-320-01Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2023-40151
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-749
CISA KEVNo
Affected1 vendor(s)
PublishedNov 21, 2023

Related CVEs (CWE-749)

CVE-2019-18342
9.9
CVE-2026-30921
9.9
CVE-2026-55454
9.9
CVE-2026-30957
9.9
CVE-2022-4136
9.8
CVE-2025-59403
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-40151 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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