CVE-2016-1561
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 74.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 74.26% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 7 April 2016
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- exagrid/ex3000 firmware · exagrid/ex5000 firmware · exagrid/ex7000 firmware · exagrid/ex10000e firmware · exagrid/ex13000e firmware · exagrid/ex21000e firmware · exagrid/ex32000e firmware · exagrid/ex40000e firmware
- Source
- cret@cert.org
EPSS moved from 77.9% on 21 September 2026 to 74.3% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.