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CVE-2017-7651

26
FAUCET Score

CVE-2017-7651 describes a denial-of-service vulnerability in Eclipse Mosquitto version 1.4.14, affecting various Debian-based distributions. An unauthenticated attacker can crash the Mosquitto server by initiating numerous connections with large payloads, leading to memory exhaustion. This high-severity vulnerability (CVSS 7.5) requires no authentication and has a low attack complexity, allowing for a complete denial of service. Despite its potential impact, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.14CPE matchmatch criteria
cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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:N/I:N/A:H

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

Exploit Intelligence

EPSS Score
5.29%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0529 is in the 86th 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

bugs.eclipse.org / bugs/show_bug.cgi
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/03/msg00037.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/06/msg00016.html
Mailing ListThird Party Advisory
mosquitto.org / blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652
PatchVendor Advisory
debian.org / security/2018/dsa-4325
Third Party Advisory