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Multi Server CVE-2012-10060

CRITICAL
Stack-based Buffer Overflow (CWE-121)
2025-08-13 disclosure@vulncheck.com
9.3
CVSS 4.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.3 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 69.06%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Emergency Immediate action required. Why: CRITICAL + EPSS > 30%, no patch available.
No patch listed yet 69.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Sysax Multi Server versions prior to 5.55 contains a stack-based buffer overflow in its SSH service. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 69.1%.

Earlier versions of this analysis (1)
v1 Mar 28, 2026 - 19:06 CVSS 9.3

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-121. Sysax Multi Server versions prior to 5.55 contains a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long username during authentication, the server copies the input to a fixed-size stack buffer without proper bounds checking. This allows remote code execution under the context of the service. Affected products include: Sysax Multi Server. Version information: prior to 5.55.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
PoC Detected
Sep 24, 2025 - 00:24 vuln.today
Public exploit code
CVE Published
Aug 13, 2025 - 21:15 nvd
CRITICAL 9.3

DescriptionCVE.org

Sysax Multi Server versions prior to 5.55 contains a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long username during authentication, the server copies the input to a fixed-size stack buffer without proper bounds checking. This allows remote code execution under the context of the service.

Executive ViewAI

Why It Matters

Organizations using Sysax Multi Server versions prior to 5.55 face critical risk from CVE-2012-10060, a stack-based buffer overflow vulnerability rated CVSS 9.3. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. With an EPSS score of 69%, this vulnerability faces very high likelihood of exploitation. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.

Threat Intelligence Overview

Threat Score
5.4/10
Composite threat intelligence
EPSS Score
69.1%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High
NVD CVE.org EPSS POC (1) Exploit-DB VulDB Metasploit

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 69.1%
Patch available No
Active threat Yes
Deciding rule
CRITICAL + EPSS > 30%, no patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

150
Low Medium High Critical
KEV: 0
EPSS: +69
CVSS: +46
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:sysax:multi_server:*:*:*:*:*:*:*:*
CVE-2012-6530 HIGH POC
7.1 Jan 31

Stack-based buffer overflow in Sysax Multi Server before 5.52, when HTTP is enabled, allows remote authenticated users w

CVE-2013-10065 HIGH POC
8.7 Aug 05

A denial-of-service vulnerability exists in Sysax Multi-Server version 6.10 via its SSH daemon. Rated high severity (CVS

CVE-2023-54337 CRITICAL POC
9.1 Jan 13

Sysax Multi Server 6.95 crashes when the admin password field receives 800 bytes, causing denial of service. PoC availab

CVE-2020-13229 HIGH POC
8.8 Jun 02

An issue was discovered in Sysax Multi Server 6.90. Rated high severity (CVSS 8.8), this vulnerability is remotely explo

CVE-2024-53458 HIGH POC
7.5 Mar 05

Sysax Multi Server 6.99 is vulnerable to a denial of service (DoS) condition when processing specially crafted SSH packe

CVE-2020-23574 MEDIUM POC
6.5 Aug 19

When uploading a file in Sysax Multi Server 6.90, an authenticated user can modify the filename="" parameter in the uplo

CVE-2020-13228 MEDIUM POC
6.1 Jun 02

An issue was discovered in Sysax Multi Server 6.90. Rated medium severity (CVSS 6.1), this vulnerability is remotely exp

CVE-2024-53459 MEDIUM POC
5.4 Dec 02

Sysax Multi Server 6.99 is vulnerable to Cross Site Scripting (XSS) via the /scgi?sid parameter. Rated medium severity (

CVE-2020-13227 MEDIUM POC
5.3 Jun 02

An issue was discovered in Sysax Multi Server 6.90. Rated medium severity (CVSS 5.3), this vulnerability is remotely exp

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