CVE-2013-10065

Name: CVE-2013-10065
Creator: NVD / NIST
Published: 2025-08-05T20:15:35.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 1.09%

Last modified Jun 16, 2026

CVE-2013-10065 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

8.7/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

1.09%

61.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-248

Affected Software

Vendor	Product	Versions
Sysax	Multi Server	6.10

References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/ssh/sysax_sshd_kexchange.rbExploit
https://www.mattandreko.com/2013/04/08/sysax-multi-server-6.10-ssh-dos/Exploit, Third Party Advisory
https://www.sysax.com/Product
https://www.vulncheck.com/advisories/sysax-multi-server-sshd-key-exchange-dosThird Party Advisory
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/ssh/sysax_sshd_kexchange.rbExploit
https://www.mattandreko.com/2013/04/08/sysax-multi-server-6.10-ssh-dos/Exploit, Third Party Advisory

Timeline

Published: Aug 5, 2025
Last Modified: Jun 16, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2013-10065?

How severe is CVE-2013-10065?

CVE-2013-10065 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2013-10065?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-10065?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST