Security readout for executives and security teams
Plain-English summary
CVE-2021-33068 is a denial-of-service issue in Intel AMT before version 15.0.35. An authenticated network user could trigger a null pointer dereference and disrupt availability. The cited sources do not support data theft, privilege escalation, or unauthenticated compromise.
Executive priority
Treat this as a moderate availability risk. Prioritize patching where AMT supports critical operations or is reachable from broad internal networks. It is not presented as a data breach vulnerability in the provided sources.
Technical view
The issue is CWE-476, a null pointer dereference in an Intel AMT subsystem. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, no user interaction, unchanged scope, and high availability impact only.
Likely exposure
Exposure is most likely where Intel AMT is enabled and running versions before 15.0.35. Risk depends on whether AMT management access is reachable by authenticated users over the network.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability requires authentication and network access, making it more relevant to managed internal networks than unauthenticated internet-wide attacks.
Researcher notes
Evidence is limited to CVE metadata and vendor advisories. The vulnerability is availability-only per CVSS and requires low privileges. Avoid assuming affected downstream products beyond those explicitly covered by Intel or NetApp guidance.
Mitigation direction
- Identify systems using Intel AMT and record installed AMT versions.
- Update affected Intel AMT deployments to version 15.0.35 or later where vendor updates are available.
- Review Intel advisory INTEL-SA-00470 for platform-specific guidance.
- Consult OEM or NetApp guidance where AMT is embedded in managed products.
- Restrict AMT management access to trusted administrative networks and accounts.
Validation and detection
- Inventory endpoints, servers, and appliances with Intel AMT enabled.
- Verify AMT versions and flag anything before 15.0.35.
- Confirm AMT management interfaces are not broadly reachable.
- Review authentication logs for unexpected AMT management access.
- Check Intel and NetApp advisories for product-specific exposure status.
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-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-33068 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00470.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220210-0006/CVE reference · x_refsource_CONFIRM
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.