Security readout for executives and security teams
Plain-English summary
CVE-2021-33108 affects Intel In-Band Manageability software before 2.13.0. A person who already has privileged local access could use improper input validation to gain higher privileges. This is not described as remotely exploitable, but it matters on shared admin workstations, managed endpoints, or systems where privileged local accounts are common.
Executive priority
Treat this as a moderate-priority local privilege risk. It is not presented as remotely exploitable or actively exploited, but unpatched management software on sensitive endpoints can increase impact after an attacker gains privileged local access.
Technical view
The CVE is CWE-20 improper input validation in Intel In-Band Manageability software before 2.13.0. CVSS 3.1 score is 6.7 with local attack vector, low complexity, high privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Intel In-Band Manageability software is installed below version 2.13.0. The bundle does not identify specific operating systems, hardware models, default installation status, or deployment prevalence.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires local access and high privileges, which reduces broad internet risk but can still matter for insider, post-compromise, or shared-administration scenarios.
Researcher notes
Available detail is limited to the CVE record, CVSS vector, affected version range, CWE-20, and Intel advisory reference. Do not assume affected platforms, exploit availability, or compensating controls beyond what Intel documents.
Mitigation direction
- Inventory Intel In-Band Manageability software installations and versions.
- Update affected installations to version 2.13.0 or later.
- Review Intel advisory INTEL-SA-00549 for vendor-specific guidance.
- Prioritize systems with shared local privileged access or sensitive management roles.
Validation and detection
- Confirm installed Intel In-Band Manageability software version is 2.13.0 or later.
- Check endpoint inventory for installations reporting versions before 2.13.0.
- Validate that privileged local accounts are limited to approved administrators.
- Document affected hosts, update status, and any exceptions.
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.
CWE-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-33108 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
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00549.htmlCVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.