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CVE-2016-1561

82
FAUCET Score

CVE-2016-1561 affects ExaGrid appliances running firmware versions prior to 4.8 P26, stemming from a hardcoded SSH public key for the root user. This vulnerability carries a high CVSS score of 7.5, indicating a critical risk due to its network-based attack vector, low complexity, and potential for full compromise of confidentiality. While not on the KEV catalog, exploit intelligence confirms the existence of a Metasploit module, suggesting readily available exploit code; however, there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.8CPE matchmatch criteria
cpe:2.3:o:exagrid:ex3000_firmware:4.8:*:*:*:*:*:*:*
4.8CPE matchmatch criteria
cpe:2.3:o:exagrid:ex5000_firmware:4.8:*:*:*:*:*:*:*
4.8CPE matchmatch criteria
cpe:2.3:o:exagrid:ex7000_firmware:4.8:*:*:*:*:*:*:*
4.8CPE matchmatch criteria
cpe:2.3:o:exagrid:ex10000e_firmware:4.8:*:*:*:*:*:*:*
4.8CPE matchmatch criteria
cpe:2.3:o:exagrid:ex13000e_firmware:4.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
74.26%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: ExaGrid Known SSH Key and Default Password · Apr 7, 2016
ExploitDB: EDB-41680 · Apr 7, 2016
This CVE's current EPSS score of 0.7426 is in the 99th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/136634/ExaGrid-Known-SSH-Key-Default-Password.html
ExploitThird Party AdvisoryVDB Entry
community.rapid7.com / community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentials
ExploitMitigationThird Party Advisory
rapid7.com / db/modules/exploit/linux/ssh/exagrid_known_privkey
Third Party Advisory