CVE-2013-10065
Sysax Multi-Server <= 6.10 SSHD Key Exchange DoS
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 5, 2025
- Updated
- Nov 21, 2025
- Reserved
- Aug 5, 2025
Description
A denial-of-service vulnerability exists in Sysax Multi-Server version 6.10 via its SSH daemon. A specially crafted SSH key exchange packet can trigger a crash in the service, resulting in loss of availability. The flaw is triggered during the handling of malformed key exchange data, including a non-standard byte (\x28) in place of the expected SSH protocol delimiter.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-248 Uncaught Exception
Affected Products
| Product | Versions |
|---|---|
Multi-ServerSysax Software |
|
References
- https://www.mattandreko.com/2013/04/08/sysax-multi-server-6.10-ssh-dos/technical-descriptionexploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/ssh/sysax_sshd_kexchange.rbexploit
- https://www.sysax.com/product
- https://www.vulncheck.com/advisories/sysax-multi-server-sshd-key-exchange-dosthird-party-advisory
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