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CVE-2024-21323

27
FAUCET Score

CVE-2024-21323 is a high-severity Remote Code Execution (RCE) vulnerability affecting Microsoft Defender for IoT. An authenticated attacker can exploit this flaw over the network with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code, the vulnerability has garnered significant community discussion and media coverage, indicating heightened awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 24.1.3CPE matchmatch criteria
cpe:2.3:a:microsoft:defender_for_iot:*:*:*:*:*:*:*:*

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
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 86th percentile among its peer group of 17,844 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

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

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Defender for IoTFixed in: 24.1.3
View patch
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2024-Apr/CVE-2024-21323Critical

Microsoft Defender for IoT Remote Code Execution Vulnerability

Apr 9, 2024

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2024-21323
Vendor Advisory