CVE-2023-54337Public exploit

Local service crash via oversized administrative password

Published Jan 13, 2026 · Updated Jan 13, 2026

Denial of service in Sysax Multi Server 6.95 allows local users to crash the service through an oversized administrative password. Saving the Password field fails to reject an 800-byte repeated-character value and terminates the application. Exploitation requires local administrative access, active user interaction, and enabled web administration and API access; the crash interrupts file-transfer services.

CVSS severity5.1
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Sysax Multi Server 6.95 allows local users to crash the service through an oversized administrative password. Saving the Password field fails to reject an 800-byte repeated-character value and terminates the application. Exploitation requires local administrative access, active user interaction, and enabled web administration and API access; the crash interrupts file-transfer services.

The record

CVE
CVE-2023-54337
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
Codeorigin, LLC
Product
Sysax Multi Server
Classifications
CWE-1284, T1489
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record 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=6.95

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Codeorigin, LLC · Sysax Multi Serverversion=6.95

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
9.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1489Service Stop

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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