CVE-2016-1561

Name: CVE-2016-1561
Creator: NVD / NIST
Published: 2017-04-21T20:59:00.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 74.26%

Last modified Jun 17, 2026

CVE-2016-1561 is a vulnerability of currently unknown severity. ExaGrid appliances with firmware before 4.8 P26 have a default SSH public key in the authorized_keys file for root, which allows remote attackers to obtain SSH access by leveraging knowledge of a private key from another installation or a firmware image.. EPSS estimates a 74.26% chance of exploitation in the next 30 days.

Description

ExaGrid appliances with firmware before 4.8 P26 have a default SSH public key in the authorized_keys file for root, which allows remote attackers to obtain SSH access by leveraging knowledge of a private key from another installation or a firmware image.

Metrics

EPSS Probability

74.26%

99.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Exagrid	Ex3000 Firmware	4.8
Exagrid	Ex5000 Firmware	4.8
Exagrid	Ex7000 Firmware	4.8
Exagrid	Ex10000e Firmware	4.8
Exagrid	Ex13000e Firmware	4.8
Exagrid	Ex21000e Firmware	4.8
Exagrid	Ex32000e Firmware	4.8
Exagrid	Ex40000e Firmware	4.8

References

http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.htmlExploit, Third Party Advisory, VDB Entry
http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkeyThird Party Advisory
https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentialsExploit, Mitigation, Third Party Advisory
http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.htmlExploit, Third Party Advisory, VDB Entry
http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkeyThird Party Advisory
https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentialsExploit, Mitigation, Third Party Advisory

Timeline

Published: Apr 21, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-1561?

How severe is CVE-2016-1561?

Severity scoring for CVE-2016-1561 is pending analysis. The EPSS model estimates a 74.26% probability of exploitation in the next 30 days.

How do I fix CVE-2016-1561?

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-2016-1561?

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

Scan your code now

Source: NVD / NIST