Multi Server
CVE-2023-54337
CRITICAL
Improper Validation of Specified Quantity in Input (CWE-1284)
2026-01-13
disclosure@vulncheck.com
9.1
CVSS 3.1 · NVD
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NVD
PRIMARY
9.1
CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 26, 2026 - 16:15 vuln.today
Public exploit code
CVE Published
Jan 13, 2026 - 23:16 nvd
CRITICAL 9.1
DescriptionCVE.org
Sysax Multi Server 6.95 contains a denial of service vulnerability in the administrative password field that allows attackers to crash the application. Attackers can overwrite the password field with 800 bytes of repeated characters to trigger an application crash and disrupt server functionality.
AnalysisAI
Sysax Multi Server 6.95 crashes when the admin password field receives 800 bytes, causing denial of service. PoC available.
Technical ContextAI
The password field does not limit input length (CWE-1284), causing application crash with ~800 bytes.
RemediationAI
Update Sysax Multi Server.
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External POC / Exploit Code
Leaving vuln.today
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