# CVE-2013-10065

## Summary

- **CVE ID:** CVE-2013-10065
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-248
- **Published:** Aug 5, 2025
- **Last Modified:** Mar 15, 2026

## 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.

## Affected Products

- Sysax Software — Multi-Server (6.10)

## References

- [CNA](https://www.mattandreko.com/2013/04/08/sysax-multi-server-6.10-ssh-dos/)
- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/ssh/sysax_sshd_kexchange.rb)
- [CNA](https://www.sysax.com/)
- [CNA](https://www.vulncheck.com/advisories/sysax-multi-server-sshd-key-exchange-dos)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 48.91%
- **EPSS Percentile:** 97.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._