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CVE-2023-35394

19
FAUCET Score

CVE-2023-35394 is a spoofing vulnerability affecting Azure HDInsight Jupyter Notebooks. This medium-severity flaw (CVSS 4.6) requires user interaction and low privileges, allowing an attacker to achieve low impact on confidentiality and integrity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community attention and media coverage, indicating its potential interest to threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:azure_hdinsight:-:*:*:*:*:*:*:*
>= 1.0, < 2307201242CPE match
cpe:2.3:a:microsoft:azure_hdinsight:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 91st percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Azure HDInsightFixed in: 2307201242
View patch

Vendor Advisories (1)

microsoft2023-Aug/CVE-2023-35394Important

Azure HDInsight Jupyter Notebook Spoofing Vulnerability

Aug 8, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-35394
PatchVendor Advisory