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CVE-2017-9078

31
FAUCET Score

CVE-2017-9078 describes a critical double free vulnerability in Dropbear SSH server versions prior to 2017.75, specifically impacting Debian and NetApp products. This flaw allows a post-authentication attacker to achieve root remote code execution when the -a option for TCP listeners is enabled. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2017.75CPE matchmatch criteria
cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.14%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0514 is in the 91st percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

lists.ucc.gu.uwa.edu.au / pipermail/dropbear/2017q2/001985.html
Mailing ListPatchThird Party Advisory
security.netapp.com / advisory/ntap-20191004-0006
Third Party Advisory
debian.org / security/2017/dsa-3859
Third Party Advisory