Security readout for executives and security teams
Plain-English summary
This CVE describes a remote code execution issue in Microsoft common_utils.py, associated with Neural Network Intelligence. Successful exploitation could let an already highly privileged attacker run code and compromise confidentiality, integrity, and availability. The source bundle does not show active exploitation.
Executive priority
Treat this as high priority where the affected Microsoft component is deployed, especially on systems used by privileged users or exposed over networks. If the product is absent, business urgency is low after documented validation.
Technical view
CVE-2021-31200 is rated CVSS 7.2 high with AV:N/AC:L/PR:H/UI:N and high impact across C/I/A. The affected entry names Microsoft common_utils.py version 1.0 under the Neural Network Intelligence CPE. Public details in the bundle are sparse beyond Microsoft’s advisory metadata.
Likely exposure
Exposure is likely limited to organizations running the affected Microsoft Neural Network Intelligence component containing common_utils.py version 1.0. The CVSS vector indicates network attackability but requires high privileges, reducing broad unauthenticated exposure.
Exploitation context
The bundle marks KEV as false and provides no cited evidence of active exploitation. The CVSS temporal vector includes functional exploit maturity, but no public exploit source, incident report, or exploitation details are included here.
Researcher notes
The source record is thin: no CWE, root-cause detail, patch version, or exploit narrative is provided. The main actionable path is asset/version confirmation against Microsoft’s advisory and careful review of privileged access boundaries.
Mitigation direction
- Check Microsoft’s CVE-2021-31200 advisory for official remediation guidance.
- Inventory Neural Network Intelligence deployments and identify common_utils.py version 1.0.
- Prioritize updates or vendor-recommended fixes on reachable or shared systems.
- Restrict privileged access to affected deployments until remediation is complete.
- Monitor vendor channels for any revised affected-version or patch information.
Validation and detection
- Confirm whether Neural Network Intelligence is installed in production or research environments.
- Verify whether common_utils.py version 1.0 exists in deployed packages.
- Review privileged user access paths to affected systems.
- Check patch or package status against Microsoft advisory guidance.
- Document compensating controls if immediate remediation is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-31200 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31200CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.