CVE-2023-5719Network attack vector

Credential weakening via percent-character password truncation

Published Nov 6, 2023 · Updated Jan 16, 2025

Password truncation in Red Lion Controls Crimson 3.2.0053.18 and earlier allows attackers to compromise devices through weaker credentials. The Windows configuration tool converts a percent character in an administrator-defined password into invalid values and can terminate the downloaded string at a NUL byte. Exposure requires an administrator to create the password through the desktop tool and miss the truncation; web-server-entered passwords are unaffected.

CVSS severity8.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Password truncation in Red Lion Controls Crimson 3.2.0053.18 and earlier allows attackers to compromise devices through weaker credentials. The Windows configuration tool converts a percent character in an administrator-defined password into invalid values and can terminate the downloaded string at a NUL byte. Exposure requires an administrator to create the password through the desktop tool and miss the truncation; web-server-entered passwords are unaffected.

The record

CVE
CVE-2023-5719
Published
Nov 6, 2023
Updated
Jan 16, 2025
Vendor
Red Lion Controls
Product
Crimson
Classifications
CWE-158, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=v3.2.0053.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Red Lion Controls · Crimsonversion=0 <=v3.2.0053.18

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8Red Lion ControlsCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-158Improper Neutralization of Null Byte or NUL Character
T1110Brute Force

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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