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CVE-2021-31200

23
FAUCET Score

CVE-2021-31200 is a remote code execution vulnerability affecting Microsoft Neural Network Intelligence. With a CVSS score of 7.2 (HIGH), it allows an attacker to execute arbitrary code remotely with high privileges, requiring no user interaction and low attack complexity. While the vulnerability is not currently listed in CISA's KEV catalog and no public exploits are available, it has garnered significant community discussion and media coverage, indicating notable attention despite its inactive hot list status.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2CPE matchmatch criteria
cpe:2.3:a:microsoft:neural_network_intelligence:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0248 is in the 80th percentile among its peer group of 5,537 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 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 nvd_reference
View patch
microsoftpatch availablevia msrc
Product: common_utils.pyFixed in: 3.0
View patch

Vendor Advisories (1)

microsoft2021-May/CVE-2021-31200Important

Common Utilities Remote Code Execution Vulnerability

May 11, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-31200
PatchVendor Advisory