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CVE-2019-5917

34
FAUCET Score

CVE-2019-5917 describes a denial-of-service vulnerability in the azure-umqtt-c library, specifically versions available on GitHub prior to October 6, 2017. This high-severity vulnerability (CVSS 7.5) can be exploited remotely with low attack complexity, allowing unauthenticated attackers to cause a complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2017-10-06CPE matchmatch criteria
cpe:2.3:a:microsoft:azure-umqtt-c:*:*:*:*:*:*:*:*

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
21.42%
Probability of exploitation in next 30 days
EPSS Percentile
97.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2142 is in the 96th percentile among its peer group of 51,553 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

Patch Available

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN05875753/index.html
Third Party Advisory
github.com / Azure/azure-umqtt-c
Third Party Advisory
securityfocus.com / bid/107149
Third Party AdvisoryVDB Entry