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CVE-2018-8119

17
FAUCET Score

CVE-2018-8119 is a medium-severity spoofing vulnerability affecting the Azure IoT C#, C, and Java SDKs. It arises from improper certificate validation over the AMQP protocol, allowing an attacker to potentially impersonate a legitimate device or service. The vulnerability has a CVSS score of 5.6, indicating a network-based attack with high attack complexity, but low impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog. Community discussion and media coverage are minimal, with only one mention and one article found.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:c_software_development_kit:*:*:*:*:*:azure_internet_of_things:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:csharp_software_development_kit:*:*:*:*:*:azure_internet_of_things:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:java_software_development_kit:*:*:*:*:*:azure_internet_of_things:*:*

CVSS Data

CVSS version used by this source: 3.0

5.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 30th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

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

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: C# SDK for Azure IoT
View patch
microsoftpatch availablevia msrc
Product: C SDK for Azure IoT
View patch
microsoftpatch availablevia msrc
Product: Java SDK for Azure IoT
View patch

Vendor Advisories (1)

microsoft2018-May/CVE-2018-8119Important

Azure IoT SDK Spoofing Vulnerability

May 8, 2018

References

tools.cisco.com / security/center/viewAlert.x
Third Party Advisory
portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8119
PatchVendor Advisory
securityfocus.com / bid/104070
Third Party AdvisoryVDB Entry