PatchTheCVECVE-2012-10060: Sysax Multi Server versions prior to 5.55 contain a stack-based buffer overflow in its SSH service
CVE-2012-10060 is a critical-severity flaw (CVSS 9.8) affecting multi server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Sysax Multi Server versions prior to 5.55 contain 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.
Why this priority
- Critical severity
- EPSS top 9%: very likely to be exploited
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.3% (top 9%) |
| CISA exploited list | No |
| Weakness | CWE-121 |
| Published | 2025-08-13 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ssh/
- Write-up: www.exploit-db.com/exploits/18535
- Write-up: www.exploit-db.com/exploits/18557
- Metasploit: Sysax 5.53 SSH Username Buffer Overflow
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2012-10060?
multi server: upgrade to 5.55. Exact commands for each OS are on this page.
Is CVE-2012-10060 being exploited?
CVE-2012-10060 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2012-10060 affect?
CVE-2012-10060 affects multi server. Severity is critical (CVSS 9.8). Sysax Multi Server versions prior to 5.55 contain 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 with
How urgent is CVE-2012-10060?
Priority 70/100. Critical severity; EPSS top 9%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2024-53459 MEDIUM 5.4 DOWNGRADE Sysax Multi Server 6.99 is vulnerable to Cross Site Scripting (XSS) via the /scgi?sid parameter.
- CVE-2024-53458 HIGH 7.5 DOWNGRADE Sysax Multi Server 6.99 is vulnerable to a denial of service (DoS) condition when processing specially crafted
- CVE-2023-54337 CRITICAL 9.1 DOWNGRADE Sysax Multi Server 6.95 contains a denial of service vulnerability in the administrative password field that a
- CVE-2013-10065 HIGH 7.5 DOWNGRADE A denial-of-service vulnerability exists in Sysax Multi-Server version 6.10 via its SSH daemon